Rays shortstop Jason Bartlett entered the 2009 season with a reputation as a good defender with plus speed and little to no home run power. He had the ability to hit for an above average batting average and could leg out some triples due to his plus speed. WAR had always treated him well due to his plus glove over the years but in his first year with the Rays his UZR declined to 2.1 runs above average. His WAR suffered to a below average 1.8 rating for the shortstop position and his .286/.329/.361 line (and well below average .311 wOBA) didn’t help his WAR prospects. He was entering the 2009 season as a 29 year old and people had a good idea what to expect from him.

And then Bartlett manages to hit an insane .320/.389/.490 with 14 home runs in 500 at-bats. Ironically, Bartlett’s glove (-5.5 UZR) hurt his value for the first time in his career but his hitting more than made up for it as he ranked fourth in WAR for MLB shortstops with a 4.8 number. Bartlett hit one home run during all of 2008 and he more than doubled his career home run total with his 2009 showing.

It’s fair to say that no one expected this kind of production from Bartlett entering 2009 just like many were blinded sided by the Ben Zobrist power surge. There’s been some work done to crack the Zobrist code and Bartlett has drawn some comparisons to the Zobrist surge. It’s extremely puzzling that Bartlett went from light hitting shortstop to a .490 slugging shortstop in one season.

Typically the media over speculates players that show up in “good” or “bad” shape during spring training but for what it’s worth Bartlett arrived at Rays sporting a bulkier frame that had 15 pounds added to it over the off season. Perhaps this could have negatively affected his defense as attributed to his -5.5 UZR but he still stole a career high 30 bases in 37 tries (81% success rate).

Upon further examination Bartlett whacked 11 of his 14 home runs away from Tropicana Field in 2009. And he hit much better on the road (.333/.405/.547) than he did at home (.305/.371/.425) but it should be noted that these splits show zero correlation to his 2008 home/road splits where he hit better at home. Bartlett seemed to enjoy the friendly confines of the new Yankee Stadium in 2009 where he slammed three of his fourteen homers.

The nifty Hit Tracker classifies each players home runs into certain bins. Eight of Bartlett’s home runs were labeled as “plenty home run” where the baseball comfortably left the ballpark. Six of his homers were classified as “Just Enoughers” which the Hit Tracker’s website defines as: “The ball cleared the fence by less than 10 vertical feet, OR that it landed less than one fence height past the fence. These are the ones that barely made it over the fence.” Perhaps the baseball gods helped a few extra homers clear the fence for Bartlett but he did still hit eight long balls comfortably over the fence.

This could be a classic case of good player development at the big league level where Bartlett made some adjustments and truly did become a new player with an improved skill set. But we will not accept nor should you be expected to accept that for an answer here at Fangraphs!

Enter our favorite toy: The Hardball Times BABIP estimator. This calculator finds an estimated BABIP based upon a players rate of HR’s, K’s, SB’s, line drives, fly balls, pop ups and groundballs. Bartlett had a flukey looking .368 BABIP in 2009 that easily trumps his .330 career mark.

Bartlett’s 2009 line drive percentage was an astounding 26% which would have screamed that his 2009 BABIP wasn’t too out of line as recently as a few years ago before we had the calculator and used the now defunct .120 + LD% formula for expected BABIP. This line drive percentage increase indicates that Bartlett did indeed hit the ball harder in 2009 and the more line drives the better but we still have to consider the margin for error in the data. Defining a line drive can be subjective to different scorers and me and you.

After plugging the proper values into the calculator it gives us an expected BABIP of .337 for Bartlett. This changes a lot and based off of this we would expect Bartlett to have hit .279/.348/.449 which is a bit more normal than his .320/.389/.490 triple-slash in 2009.

I do believe in the human element in baseball and do believe in strong player development and that players do make adjustments as they advance in their careers just like we become better at our professions as we spend more years in a particular field of concentration. If you’ve spent ten years in a certain career I bet you feel that you’re a much better and more knowledgeable worker than you were five years ago. People make adjustments and do improve and Jason Bartlett can too. We must not forget that he is a human being.

In summary the numbers do suggest that Bartlett made some notable improvements to his game. His strong line drive percentage suggests that he’s hitting the ball harder. The Hit Tracker says he popped eight “plenty” home runs that easily sailed over the fence. Just those eight homers spike his slugging percentage much more than the one homer did just one year ago in 2008. And he also set a career high in stolen bases at 30. While Bartlett mashed much better away from home the sample size (200+ at-bats on the road and at home) is not enough to draw a convicting conclusion. Tom Tango would have harsh some words for me if I tried using splits of that size to indicate a change in skill.

Bartlett’s six “just enough” homers as defined by the Hit Tracker suggest that he may have hit a few lucky homers last season. The trusty BABIP calculator believes Bartlett should have hit for a collective .279/.348/.449 in 2009 and I believe that’s a much closer indication of his true skill level even if it isn’t the perfect forecast. And I’m mighty excited to see how you all project Bartlett in our 2010 Fan Projections.

Bartlett will be a good bet for around 25 steals next year and a solid source of batting average (.290-.300) and some power. It’d be safe to project ten home runs from him in 2009. Luckily for fantasy owners they are not responsible for projecting Bartlett’s defense which has slowly declined over the past three seasons according to UZR. UZR no longer sees him in the elite fielding category for shortstops like he was during his Minnesota days.

Jason Bartlett stunned a lot of people in 2009 but while it appears that he made some real adjustments to his game don’t think he’s the .389 wOBA hitter that he was in 2009. Fantasy players may be antsy to pop Bartlett early in your draft next year but don’t be the one to do so. You’ll be better off to select another safer shortstop option.

Alex Gonzalez will be manning shortstop in Toronto once again… only it will be a different Alex Gonzalez.

Alex S. Gonzalez was the Jays’ starting shortstop from 1994-2001, before rookie GM J.P. Ricciardi shed his salary in a trade dump with the Cubs. The younger Gonzalez, who was originally signed by Florida, will take over the position nine years after the original Gonzo left town.

Both players share some similar traits. Both shortstops were above-average defenders, but below average hitters (albeit with a little added pop). The elder Gonzalez finished his career in ’07 with a triple-slash line of .243/.302/.391, while the 32-year-old infielder has a career line of .247/.294/.395 in 1,229 big-league games.

Entering 2010, the junior Gonzalez will see everyday duty at shortstop with Toronto. The club also recently announced that it had resigned veteran backup John McDonald to a two-year, $3.0 million contract. He’ll likely spell Gonzalez at short once or twice a week, while also seeing time at second base and third base.

Defensively, which really doesn’t help fantasy owners, Gonzalez should pair with Aaron Hill to provide solid defense up the middle. Gonzalez had an UZR of 10.5 this past season. His range will help to make up for the poor play at the hot corner by Edwin ‘E5’ Encarnacion. Gonzalez’ defense pulled up his abysmal hitting to give him a 0.5 WAR rating, which means he was worth about $2.4 million in ’09. Terms of his 2010 contract have not been released.

Gonzalez split the ’09 season between Boston and Cincinnati and hit .238/.279/.355 in 391 at-bats. Bill James‘ projection for Gonzalez in 2010 is a line of .248/.305/.387. He hasn’t played more than 112 games in the past four seasons (having missed ’08 in its entirety), so McDonald should certainly get more playing time in 2010, after Marco Scutaro (possibly headed to Boston via free agency) started almost every game until he was hurt in September.

If Gonzalez sees some power return to his game in 2010 (His ISO was just .118 in ’09, compared to an average of .170 or so between 2003-07), he could see his value increase a little bit. Even so, he’s certainly not a Top 10 fantasy option at the position, and he may not be in the Top 20 either. Because of his defensive value, he’s far more valuable in real-life baseball than in fantasy ball.

Now that J.J. Hardy has been shipped to the Twin Cities for CF Carlos Gomez, Milwaukee’s shortstop position belongs solely to Alcides Escobar.

The soon-to-be 23 year-old, signed out of Venezuela in 2003, has long been lauded for his slick glove work. Sean Smith’s Total Zone defensive system rated Escobar as +24 runs above average per 150 defensive games in 2008 and +21 in 2009. Hardy is an outstanding defender in his own right, but Alcides certainly won’t hurt Milwaukee’s pitchers, either.

Considering his position on the defensive spectrum and his exquisite range, Escobar could be a huge asset without putting up many crooked numbers on the scoreboard. But what about that bat? Can Alcides hit enough to make him relevant in fantasy circles in 2010?

The 6-1, 180 pound Escobar made his pro debut as a 17 year-old in 2004, taking his cuts in the Rookie-level Pioneer League. He batted .281/.348/.342 in 262 PA, displaying enough talent to crack Milwaukee’s top 30 prospects entering the 2005 season (Baseball America rated him 25th). Escobar was raw, to be sure, as he walked in less than 8% of his PA and was 20-29 in SB attempts.

Bumped up to the Low-A South Atlantic League in 2005, Alcides took his hacking to another level. Posting a .271/.305/.362 triple-slash in 562 PA, Escobar drew a walk just 3.6% of the time. With a .091 ISO, Alcides rarely got the ball out of the infield. He swiped 30 bases, but his technique remained unrefined (13 CS).

While that assessment sounds negative, keep in mind that Escobar was the same age as a high school senior, yet he managed not to embarrass himself at the plate while rating as a plus defender at shortstop. Baseball America jumped Escobar all the way up to 6th on Milwaukee’s prospects list.

2006 proved to be the toughest year of Alcides’ minor league career. He broke his finger in April, missing several weeks of action. Escobar never did get going at the dish, as he stumbled to a .259/.299/.308 line in 382 PA. Extra-base hits were the rarest of commodities (.049 ISO), and Alcides still swung from his heels with a 5.2 BB%. On the positive side, his 78 percent success rate on the base paths (28 SB in 36 attempts) was the highest mark of his career. BA ranked Escobar 9th among Brewers farm hands, believing that he had a “chance to grow into gap power.”

Milwaukee sent Escobar back to High-A to begin the 2007 season. The defensive stalwart swatted pitchers for a .325/.347/.377 triple-slash in 283 PA. However, the big gap between his ’06 and ’07 numbers appeared to be more of a BABIP spike (.303 in ’06 to .373 in ’07) than legitimate improvement in his plate approach. Escobar walked 2.5% of the time, with a .052 ISO. He was reckless on the bases as well: he snatched 18 bases, but was caught stealing 10 times (64% success rate).

The Brewers were encouraged enough to promote Escobar to the AA Southern League mid-season, where he batted .283/.314/.354 in 245 PA. It was much the same from an offensive standpoint. He improved his walk rate (4.6 BB%) and power output (.071 ISO), but we’re speaking in relative terms here. Strangely, Escobar was glued to first base in AA. He stole just four bases in seven tries.

Encouraged by his play as a 20 year-old just two rungs from the majors, BA bumped Escobar to third in the Milwaukee system. Alcides was said to have gotten stronger, which “stopped pitchers from knocking the bat out of his hands.”

Back at AA Huntsville in 2008, Escobar hit .328/.363/.434 in 597 PA. A .375 BABIP certainly didn’t hurt, and he did remain a free swinger (5.4 BB%). But Escobar posted a .100+ ISO for the first time in his career (.106). His 8 HR in ’08 topped the combined 7 HR he hit from 2004-2007. Escobar also used his wheels more efficiently, going 34 for 42 in steal attempts (81 percent success rate). BA dubbed him the best prospect in the system heading into the 2009 season.

Getting his first taste of AAA ball in ’09, Escobar didn’t disappoint. He managed a .298/.353/.409 line in 487 PA, walking 6.9% of the time with a .112 ISO. The secondary skills were still mild, but Escobar transformed from a potential liability at the plate during his early years to a guy who can at least occasionally deliver something offensively. He continued to use his speed to good effect as well, with a whopping 42 SB in 52 attempts (81 percent).

Called up to Milwaukee in August, Escobar hit .304/.333/.368 in 125 PA. Alcides was anxious in the batter’s box, walking just 3.1% and swinging at nearly 30% of pitches thrown outside of the strike zone. He rarely drove the ball (.064 ISO), while making plenty of contact (92.7 Z-Contact%, 87.8% MLB average). Escobar stole four bags in six tries.

Heading into 2010, fantasy owners should expect Escobar to go through some growing pains at the plate. According to Minor League Splits, Alcides’ AAA line equated to a .259/.301/.345 showing at the major league level. That translated line could be selling Escobar a bit short batting average-wise: he had a .346 BABIP in the minors, suggesting his world-class speed allows him to beat out more infield hits than the average batter.

It seems unlikely that the lanky shortstop will become more than a decent hitter, given his paucity of secondary skills, but he has the potential to steal 25+ bags in 2010. Though his plate discipline isn’t quite as good, Escobar could be the National League’s answer to Elvis Andrus.

With human vacuum Alcides Escobar ready for everyday play and incumbent shortstop J.J. Hardy turning in a disappointing 2009 season, the Milwaukee Brewers were determined to shop Hardy this offseason.

It didn’t take long for the Brew Crew to find a trade partner, as the Minnesota Twins acquired Hardy today in exchange for center fielder Carlos Gomez.

Because of a demotion to the minor leagues in August, Hardy will be under team control for the 2010 and 2011 seasons (he would have been eligible for free agency following 2010 without the unwelcomed Nashville vacation).

The 27 year-old is a slick fielder in his own right, but his lumber was MIA in 2009. Hardy posted a solid .338 wOBA in 2007, then followed that up with a .355 mark in 2008.

This past year, though? J.J. turned in a .292 wOBA. After compiling +3.5 Park-Adjusted Batting Runs in ’07 and +13.7 in ’08, Hardy sunk to -13.2 in 2009.

What happened to Hardy’s bat, and can we expect a rebound in 2010?

The first thing that jumps out about Hardy’s line is his .264 BABIP, well below his .306 mark in 2008 and his career .280 BABIP.

Hardy’s career BABIP is fairly low, likely because he had lofty infield/fly ball rates from 2005-2008 (pop ups are near automatic outs). And, Hardy did post a very low line drive rate in 2009 (13.9 percent).

But even so, J.J. was unlucky on balls put in play in 2009. He actually didn’t pop the ball up excessively (9.1 IF/FB%), taking away one possible cause of the low BABIP. Using this expected BABIP tool from The Hardball Times, we get a .306 XBABIP for Hardy, based on his HR, K, SB, line drive rate, fly balls, pop ups and ground balls.

Even assuming all hits were singles, that would raise Hardy’s triple-slash from .229/.302/.357 to a less-wretched .271/.344/.399. His power was down in ’09 (.128 ISO, .166 career average), but his adjusted line equates to a wOBA of roughly .330. That’s a little better than Hardy’s career .325 wOBA. Essentially, his 2009 performance wasn’t all that different from his overall level of play at the major league level.

Heading into 2010, owners should expect Hardy to be neither the offensive stud of 2008 nor the offensive dud of 2009. Hardy looks like a slightly above-average big league hitter. Considering that J.J. is a plus defender at a premium position, it looks as though the Twins got exceptional value here.

Going to Milwaukee is Gomez, who is under team control until 2013. In February of 2008, the Dominican Republic native was the principal prospect acquired in the Johan Santana blockbuster. Now, Gomez heads back to the N.L., presumably replacing pending free agent Mike Cameron.

Turning 24 in December, Gomez derives almost all of his value from his legs. The 6-4, 215 pound righty has yet to show much ability at the dish. His career wOBA in 1,100+ PA is .286. Gomez has walked just 5.1 percent of the time, while hacking at 35.1% of pitches thrown out of the strike zone (his O-Swing% was 29.9 in 2009).

Gomez has a peculiar profile at the plate. He’s as speedy as they come (7.6 career Speed Score, compared to an MLB average around five). Yet, his career groundball rate is just 44.4%, near the MLB average. The former Mets prospect does just about nothing with the fly balls that he hits.

His major league HR/FB rate is 4.6%. Gomez has a career .373 slugging percentage on fly balls. For reference, the AL average was .603 in 2009. When he isn’t hitting harmless flies, Gomez is popping the ball up at an alarming rate. His career IF/FB% is 16.1%.

Given Gomez’s lack of pop and his issues with fastballs (career -1.33 runs per 100 pitches), Milwaukee’s new fly catcher has seen a surprisingly low proportion of heaters (52.6 percent). Of course, he hasn’t really lit it up against sliders (-0.26), curves (-0.37) or changeups (-2.17), either.

Gomez’s wheels are what keep him on the fantasy radar. He swiped 12 out of 15 bags in 2007, 33 in 44 attempts in 2008 and a less-impressive 14-for-21 in 2009. Gomez has a 73.8% SB success rate in the majors.

At the present moment, Gomez is one of those “more valuable in regular baseball than fantasy” guys. He covers a ton of ground in the field (career +14.2 UZR/150 in CF), but he is totally lost at the plate. Owners jonesing for steals will be interested, and it’s possible that Gomez will show something more offensively, given his relative youth. But as the old saying goes, you can’t steal first base.

When we checked the position and identified the tiers for shortstops going into next year, some readers thought we should break the list down into AL- and NL-only lists in order to help deeper league managers understand potential late-draft steals at the position. Instead of bogging this post down with lists, though, let’s just comb through shortstops that didn’t quite make our top twelve. We’ll be sure to find some value deeper into the rankings.

Some of the players just missing the cut did so because they got a grade of “incomplete” last year. Those players have to be ranked above those that played the whole year and put together poor campaigns, right?

The most exciting non-top-twelve shortstop would have to be Alcides Escobar if only the Brewers are prepared to hand him the job in 2010. The early prognosis is positive. He played 15 of the Brewer’s last 19 games in 2009 and his capable offense (.304/.333/.368) and okay defense (-5 UZR/150) were good enough to be worth about a million dollars per month. His BABIP (.345) looks high, and next to his xBABIP (.296) shows that his batting average is a little risky. He does reach too much (30%), but at least he puts the ball on the ground (52% in 2009) where his plus speed (42 stolen bases against 10 caught stealings in AAA in 2009) can help him find some hits. Call him slightly riskier than Ryan Theriot, but if he comes at a cheaper price, he has a higher upside given his speed.

Mike Aviles also got an incomplete grade in 2009. After bursting onto the scene in 2008, there were some warning signs that Aviles may have some trouble repeating the performance. The biggest worry about his actual performance in 2009, though, were his plummeting contact rates and rising strikeout rates. Pretty much the best thing that Aviles had going for him was his ability to put wood on the ball in the zone (90.7% in 2008) and not strikeout (13.8% in 2008). Both of these attributes were consistent throughout his minor league career, but they both disappeared in 2009 (85.6% contact rate in the zone, 21.7% strikeout rate). He’ll need to recover his old bat-control ways in order to get his job back. The good news is that there’s only Yuniesky Betancourt and his .639 2009 OPS in his way. Given the fact that Aviles’ stats last year were the outliers when considered against his entire career, there’s at least a decent chance that Aviles puts up a good batting average with a little power somewhere on the infield in 2010.

Asdrubal Cabrera makes an interesting case study. His .362 BABIP last year threatens to put some risk into his best category (batting average) when seen alone. But look at that same number next to his lifetime BABIP (.342) and his xBABIP (.340) and you realize that he’s a speedy guy that may have figured out how to get the most of his hits. Perhaps he does it by favoring the ground game (48% groundballs), which does rob him of some power and leave him with little value if the batting average dives. If he can retain his speed (5.9 speed score in 2009, 5.1 career, 2.7 in his poor 2008 showing), Cabrera is a good mid-round bet to repeat the rest of his 2009 numbers.

Back over the National League for a late-round value, we find a newly minted starting shortstop (and another Cabrera) in San Diego’s Everth Cabrera. On the good side of his ledger is the fact that his organization does not have better options and he showed the ability to get on base (10%) and good speed (25 stolen bases in 33 attempts). There are some negatives. Despite some subjective reports of good defense, his UZR/150 was poor (-10.6). Also, his approach at the plate combines too many strikeouts (23.3%) with a paucity of line drives (14.8%) to produce a bit of a limp-noodle combined line (.255/.342/.361). In fantasy, however, all you have to know is that he has speed and can take a walk. Those stolen bases will give you good return on your investment.

Over the offseason we’ll take a look at each position on the diamond and see how the past season affected the positional rankings and where there might be some potential bounceback value picks going into next year’s drafts.

Rankings are the height of subjectivity, of course. Drafts are the expression of the subjective opinions of the different draftees, though, so lets see what we can learn by putting these players in their (subjective, fantasy-oriented) place.

Obviously, the biggest winner of 2009 was Troy Tulowitzki, who used a .344/.421/.622 second half to rise to the top third of the rankings. With only a 64% success rate on steals, and a speed score (6.6) that was far and away the best of his career, however, owners should probably not expect another 30/20 season next year and he may be overvalued despite his good power.

Sitting just below him is perhaps the biggest dropper of the year at the position, Jimmy Rollins. A career-low in BABIP (.253) suggests the batting average should bounce back. On the other hand, a six-year low in speed score (6.8) could be the harbinger of a decline in the 31-year-old. He still was successful on almost 80% of his stolen base attempts and still hits enough fly balls to muscle those home runs out. Rollins should be the value in that second tier next year.

The third tier is an interesting mix of the rejuvenated old (Derek Jeter) and the surprising young (Ben Zobrist and Jason Bartlett). Jeter has done this all before, but fantasy owners know that he’s not dependable when it comes to the counting stats you need in fantasy. At that point in the draft, it may be worth waiting a round or two and taking a shot that one of the young guys repeats his season. Personal opinion significantly determines how you organize this tier.

The next tier contains two men that disappointed this year, but given the fact that Alexei Ramirez is 29, it’s probably the slightly younger (26) Stephen Drew that should be picked ahead of him. Given Drew’s incredible oscillating OPS, next year may yet be a good year for him. Elvis Andrus is the upside play in the tier but he’ll cost the most, too.

The last tier is only for those determined not to reach for positional scarcity. It is not recommended for those in standard mixed leagues, even if Yunel Escobar shows some signs of developing mediocre power (fly balls increasing to 30% and HR/FB increasing to 10% in 2009).

Heading into the 2009 season, no fantasy position was as screwed up as shortstop. The first three spots were written in stone but if you looked at 10 different rankings, it is possible you might not have found even two lists which had one player the same in their rankings from four through 20.

And if we thought it was a mess heading into the year, it has been even more unpredictable two-thirds of the way through the 2009 season. I am going to use the preseason rankings of my friend Troy Patterson from Roto Savants to illustrate this point. Patterson does excellent work and readers may recognize his name from comments he has left on articles here previously. I am going to compare his rankings versus the current numbers for SS from the RotoTimes Player Rater (RTPR).

1. Hanley Ramirez (RTPR #1) – Ramirez probably went in the top three of your draft, if not first overall. He checks in today with a dollar value of $33.19 and in raw dollars is the third-best fantasy hitter.

2. Jose Reyes (RTPR #25) – Reyes had been one of the most consistent fantasy players the past four seasons but has had this year ruined by his leg injuries.

3. Jimmy Rollins (RTPR #14) – Rollins deserved to be the third shortstop off the board this year but a first-round pick was too high. Rollins delivered first-round value in his MVP season of 2007 but that season he set career bests in four fantasy categories and also had 41 SB.

4. Jhonny Peralta (RTPR #19) – Peralta hit 20+ HR in three of the past four seasons but this year is on pace to hit just 14. Also, he projects to finish with just 66 R, after scoring 104 last season and finishing with 80 or more the previous three seasons.

5. J.J. Hardy (RTPR #31) – Hardy was coming off back-to-back strong fantasy seasons in which he contributed in four categories. For healthy players, he belongs in the conversation for biggest fantasy busts of the year with his -$5.08 dollar value so far.

6. Stephen Drew (RTPR #20) – Owners enthralled by his strong second half in 2008 have been really disappointed by Drew’s 2009 season. After putting up a .927 OPS after the All-Star break last year, only a strong season at home this year has kept 2009 from being a disaster. Drew has a .225 AVG away from Chase Field and a .667 OPS in road games.

7. Troy Tulowitzki (RTPR #6) – Injuries ruined Tulowitzki’s 2008 season and fantasy owners were cautious with him heading into this year. Tulowitzki got off to a slow start but since June 7th he has a .320-15-36-40-10 line in his last 50 games.

8. Derek Jeter (RTPR #2) – Jeter’s days as a fantasy star seemed to be over but he has surprised everyone by once again being a five-category fantasy player. After posting 11 HR and 11 SB in 150 games last year, Jeter has 11 HR and 19 SB in 99 games this season.

9. Michael Young (RTPR #3) – Another player whose best fantasy days seemed to be behind him, Young has thrived with a move to 3B, although he retains his SS eligibility for this season. Young is on pace for his best year since 2005, when he finished 11th in the MVP race.

10. Rafael Furcal (RTPR #23) – A trendy pick to be the fourth SS off the board, Furcal has been healthy this season but not nearly as productive as he was last year before going down with a back injury. Furcal has been hot lately and will likely move up among SS before the year is out.

Six of the top 10 players on this list have current positional ratings of 14 or lower. Compare that to Patterson’s first base list, in which eight of the players in his preseason top 10 currently rank in the top 11 spots at the position.

So, which players not listed above currently rank in the top 10 SS? They are as follows:

4. Jason Bartlett (Patterson preseason #23) – In his third season as a full-time player, Barlett is far surpassing numbers he put up previously. He already has established career-bests in HR and RBI and is only 3 SB off his personal best.

5. Miguel Tejada (Patterson #12) – A .339 BABIP is certainly helping to rejuvenate Tejada. But he also benefits from a strong performance in RBIs. Updated ZiPS forecasts him to finish with 92 RBIs, which would be his best mark since 2006 and 29 more than he produced last season.

7. Marco Scutaro (Patterson not in top 25) – In his age 33 season, Scutaro will establish career highs in all five fantasy categories. Yes, some of that is due simply to playing time, but Scutaro did post 592 PA last season.

8. Ryan Theriot (Patterson #15) – Most people were not as bullish on Theriot as Patterson was. He had a .340 BABIP last year (with no power) and the Dutton and Bendix xBABIP model had him for a .291 mark in the category. No one was expecting Theriot to post a .336 BABIP this season.

9. Yunel Escobar (Patterson #18) – It seems like just yesterday that pundits were referring to Escobar as a “Yutility infielder” and now he is a solid starter in a 12-team mixed league.

10. Asdrubal Cabrera (Patterson not in top 25) – Cabrera was draft worthy coming into the season due to his eligibility at both 2B and SS. A .359 BABIP has made him a starter in most leagues, although he has also contributed more SB than anyone expected.

There are a plethora of middle infielder surprise stories this year. Ben Zobrist‘s breakout season was just dissected by Dave Allen this week, and Dave Cameron touched on Marco Scutaro’s remarkable penchant for riding the wave this year.

A little less heralded, but no less surprising, has been the play of Nick Green in Boston. All six feet, 180 pounds of Green spent 2008 in the minor leagues in the Yankee organization, playing the middle infield and hitting poorly (.233/.285/.373). Talk about coming back from the dead. Green’s resurrection has brought him all the way to a .281/.337/.433 slash line, and fringe fantasy relevance as the nominal starter at shortstop on a good offensive team.

While defense is not usually a fantasy entity, I covered its importance this week while talking about Fernando Martinez and his chance of sticking in center field over the next couple of weeks in New York. In the same way, a discussion of Nick Green’s defense is in order.

It’s not like he was a player known for his defense at shortstop as he advanced through the Atlanta Braves’ system all those years ago. in fact, the last time he logged significant tries at the position was 2000, in high-A ball. Until Seattle and New York tried him there in 2007 and 2008, he logged about 40 games at the position. But he acquitted himself well while playing short, and his overall minor league Range Factor per nine innings was a decent 3.86.

This year he’s playing to his potential in the field, with a 3.8 RF/9 and a positive UZR rating. His 9 errors are a little worrisome, but he doesn’t have much competition from Julio Lugo, whose hands have turned to bricks this year. Lugo’s career 4.2 RF/9 is down to 2.8, he has 6 errors in half the attempts as Green. And his 14.1 lifetime UZR rating is down to -6.9 this year.

So you have one man whose lifetime .271/.335/.391 slash line and double-digit lifetime UZR rating are up against a hotter player with a lifetime .248/.314/.364 slash line and 9.5 lifetime UZR at the same position. This is a pretty classic battle, and if the difference on lifetime defense or offense was more pronounced, it would be much easier to come down on the side of the seasoned veteran.

It’s tough to parse the team’s attitude about playing time going forward, even if the decision seems to have been made in the present. Lugo has only 20 at-bats in June, which would seem to say that Green has won the battle. However, Lugo’s current .292/.361/.385 slash line may be some ready-made Maalox for the manager when Green’s offense starts to take the predictable slide.

But career seasons do happen. And Lugo is no prized veteran that deserves more tries at the position. The Boston fans certainly aren’t clamoring for more from the slap-hitting Lugo, especially if his defense continues to be putrid. So we come back to defense, because as long as Green plays better on that side of the ball, he’ll probably continue to start. The team has plenty of offense from its other positions.

On offense, ZiPS RoS projections seem about right for Green. They have him finishing the season with a .271/.322/.418 slash line, and some regression will happen. His BABIP is .344 (against a .323 career number), and his strikeout rate is currently significantly lower than his career rate. There’s nothing more damning than his current 40.5% O-Swing%, in the end. Even his career 26.5% reach rate is way too high reaching for a low-power middle infielder.

So for your deep-league fantasy managers that just need anything, anything at all from a starting middle infielder: Green means go… as long as he’s picking it at short. See some more errors in the box score, and you should get nervous.

When the Athletics signed Orlando Cabrera to a one-year, $4-million-dollar deal late in the offseason, Dave Cameron was not alone in lauding Billy Beane for another veteran steal.

The logic seemed unassailable. Cabrera has been a real plus on defense over the course of his career. Last year he even put up an impressive 14 runs over the average shortstop, but his glove has also averaged 7 runs over average at a premium position for three years.

Of course, his offense has been a drag on his value. Over his valuable last three years, he’s given up almost 4 runs a year with his bat. Even so, most teams would agree with his $26 million dollar value over the last three years, especially if that player came with a $4 million dollar price tag.

Then came this year. The player himself said it best to the San Francisco Chronicle: “I suck. I don’t even know how to describe it. … I suck. For real.” So what’s going on with this year’s disasterpiece? Perhaps we can use his offensive numbers to figure out what he’s lost on defense.

There are a couple issues with his plate discipline. While his walk rate and strikeout rate are right in line with his career numbers, his reach rate is up a little (27.2% over 24.1% career). With a 93.6% zone contact rate, he could stand to take advantage of that strength by reaching less often. This is nitpicking, however.

His batted ball rates are actually all perfectly in line with his career averages. It is eerie actually how Cabrera’s line drive, ground ball and fly ball rates are right in line with what he’s always done. In April, he hit 62 balls without getting a single one over 100 mph, but without historical data, it’s hard to say much about those numbers. He was never much of a slugger anyway.

No, he was more of a speedster. Since 2001, he’s averaged 21 stolen bases and a 5.3 four-component speed score. This year, he’s down to two stolen bases (against four caught-stealings) and a speed score half his average (2.5). His BABIP, a number that is tied to speed, is in a three-year decline. That’s more than a step slow, that seems like a leg or foot injury… or a quick decline.

Consider that his speed score, which was never elite in the first place, is actually in a four-year decline. His stolen-base success rate in 2008 was his lowest since 2001. It certainly looks like Orlando Cabrera has lost a step – or even more than a step. Since speed is a big part of both his offensive and defensive game, it follows that his value has quickly entered a decline phase.

Maybe this isn’t so surprising for a 34-year-old middle infielder. What is surprising is that, by using his speed score and offensive numbers, we can possibly spot a loss of speed that isn’t evident in his defensive component numbers. If he has slowed, you wouldn’t have seen it in his Range Factor, Range Runs Above Average, or Ultimate Zone Ratings over the past three years. His defensive numbers just fell off a cliff this year, with little warning. It seems that defensive statistics could use some more refining.

Either that, or Cabrera is just having an unlucky start (.250 BABIP) and a little trouble getting his motor going.

Coming into the 2009 season, the Cleveland Indians had to feel pretty confident about Jhonny Peralta. After all, the 6-2, 210 pound Dominican Republic native had averaged 2.75 Wins Above Replacement over the 2005-2008 seasons, including a 3.9 mark in 2008.

His once-leaden leather was showing improvement, as was his bat. While not scaling to the heights of his 2005 season (+25.1 Batting Runs), Peralta improved from -10.6 Batting Runs in 2006 to +2.7 in 2007 and +10.8 in 2008. Jhonny’s ISO rebounded from .128 in ’06 to .160 in ’07 and .197 in ’08. Entering his peak years (Jhonny turned 27 in May), Peralta looked like a good bet to turn in another above average offensive campaign:

2009 pre-season projections:

CHONE: .272/.343/.452
Oliver: .268/.328/.435
ZiPS: .267/.333/.440

Instead, Peralta has been an offensive drag. Through 250 plate appearances, Jhonny owns a sickly .252/.331/.338 line. His .086 ISO is way below his .162 career average. To put that figure into context, the immortal Willie Bloomquist has out-ISO’d Peralta by 11 points. Amazingly, Jhonny and Willie are in a heated race to see how homers more, with Peralta holding a slim two-to-one edge.

So what in the name of Chief Wahoo is going on here? Peralta is showing similar plate discipline, with a 9.8 BB% (9% career average) and an Outside-Swing Percentage of 24% (23.5% career average), so he’s not hacking his way to a sub-.670 OPS. Jhonny’s 25.7% K rate is also near his career norm (25.7%) and his BABIP is .331, so it’s not as though a bunch of balls put in play are finding gloves.

Peralta’s problem? He’s chopping the ball into the dirt like never before and getting jammed more frequently:

2009: 57 GB%, 26.7 GB%, 11.4 IF/FB%
Career Avg: 46.9 GB%, 33.5 FB%, 5.7 IF/FB%

Jhonny holds the 8th-highest groundball rate among all batters, sandwiched between a pair of middle infielders sporting new duds. However, Howie Kendrick (Salt Lake Bees) and Emmanuel Burriss (Fresno Grizzlies) probably aren’t too thrilled to be touring the Pacific Coast League.

Peralta has struggled badly with the heat in ’09, with a -1.12 run value per 100 fastballs seen. That ranks as the 15th-worst mark in the majors, and is well below his +0.49 career average. Jhonny has been an automatic out when pulling the ball this season (stats courtesy of Baseball-Reference):

2008: Pulled-RHB: .461 BAVG/.737 SLG (101 OPS+; one percent better than the league average in this category)

2009: Pulled-RHB: .216 BAVG/.333 SLG (-6 OPS+)

Not only is Peralta putting the ball in the air less often, but the flyballs he has hit have been about as threatening as a newborn kitten:

2008: .289 BAVG/.792 SLG (167 OPS+)
2009: .200 BAVG/.350 SLG (52 OPS+)

Peralta’s increased groundball rate and infield/fly percentage suggest that he’s a little tentative at the dish right now. He has swung at fewer pitches within the strike zone (67.7%, compared to 73% in 2008) while making contact with those pitches less often (84 Z-Contact% this season, 86.1% in 2008). If Jhonny is going to out-homer Wee Willie Bloomquist, he might have to let ‘er rip with more conviction.