Stock Watch: June 15th

Stock Up

Stephen Strasburg, Nationals

Yeah, I know — kinda obvious. But Strasburg’s first two big league starts are well worth discussing. The hoopla surrounding the San Diego State Aztec reached mythical proportions typically reserved for the likes of Big Foot, Chupacabra and Loch Ness, but Strasburg has been highly impressive.

The 21-year-old righty ripped apart minor league batters before getting the call — in 55.1 IP between Double-A Harrisburg and Triple-A Syracuse, he had 10.6 K/9, 2.1 BB/9 and a FIP slightly above two. When opponents weren’t whiffing, they were hitting weak grounders (Strasburg’s GB% was 64.9). While his second MLB start against Cleveland proved that he is, in fact a sentient being capable of error, Strasburg has a 22/5 K/BB ratio in 12.1 frames so far.

He’s sitting 98 with the four-seamer, 96 with the two-seamer and also features a low-80’s curve with two-plane break and a 90-91 MPH change that drops seven inches more than his four-seamer (4-4.5 inch big league average). His swinging strike rate is 15.3. There’s not much else to say, other than Strasburg really is worthy of the attention that he receives.

Colby Rasmus, Cardinals

Rasmus, 23, has followed up a quality rookie season with a great leap forward at the plate. In 219 PA, he’s hitting .293/.399/.582, with a .414 wOBA that ranks in the top 10 among MLB hitters. Clearly, Rasmus won’t keep up this pace. He’s benefitting from some fortunate bounces, with a .375 BABIP that’s well ahead of his .319 expected BABIP. But even so, he’s working the count and crushing the ball.

Swinging at 23.3 percent of pitches out of the zone (28.1% MLB average), Rasmus is drawing ball four in 14.6% of his PA. His Isolated Power, .156 last season, is .288 in 2010. All of that taking and raking has come with more swings and misses (33.2 K%, compared to 20% in ’09), but it’s a trade well worth making. Rasmus likely won’t keep hitting homers nearly 21 percent of the time that he lofts a fly ball into the air — ZiPS projects a .266/.342/.447 line for the rest of 2010, and CHONE a .259/.339/.442 triple-slash. I’d take the over on those forecasts, however.

Brandon Morrow, Blue Jays

Definitively a starter with Toronto after years of role-related drama in Seattle, Morrow has been considerably better than his ERA (5.14) implies. He’s got 10.29 K/9, 4.89 BB/9 and a 3.99 xFIP in 70 innings pitched. Morrow still struggles to find the strike zone at times — his first pitch strike percentage is 53.8 (58.3% MLB average) — but he’s missing lumber at an elite rate.

With an 11 percent swinging strike rate, Morrow ranks in the top 10 among qualified starters (the MLB average is 8.2%). His contact rate of 74.4% is well above the 81.1% big league average and places behind just Clayton Kershaw, Tim Lincecum and teammate Ricky Romero. The whiff rates on Morrow’s 94 MPH four-seam fastball and upper-80’s slider are stratospheric — 10.6% for the four-seamer (6% MLB average) and 26.7% for the slider (13.6% MLB average). This guy’s probably still available on the waiver wire, too, as Morrow’s owned in just 15% of Yahoo leagues.

Stock Down

Rick Porcello, Tigers

Porcello’s 21, and his career could take any number of paths over the coming years. But he hasn’t made progress during his sophomore season. The New Jersey prep product is punching out fewer batters this year than in 2009 (4.02 K/9, compared to 4.69 K/9), with a few more walks (2.91 BB/9, 2.74 BB/9 in ’09) and a lower ground ball rate (48.8 GB%, 54.2 GB% in ’09). No, he hasn’t been six-plus ERA bad — his BABIP (.350) and strand rate (61.6%) will regress toward the mean — but Porcello’s xFIP has climbed to 5.14 in 2010 after coming in at 4.32 in 2009.

At this point, Porcello basically has one pitch going for him: a 90 MPH sinker that he throws for strikes and uses to get grounders. Everything else is a work in progress. His four-seamer, thrown a couple ticks quicker, has a decent whiff rate, but Porcello struggles to locate it. Hitters lay off his lackluster breaking and off-speed stuff:

Having thrown all of 125 innings in the minors, Porcello is learning on the job. And he’s still got a ways to go.

Chase Headley, Padres

A full-time third baseman after spending the better part of the past two seasons in left field, Headley is flashing the leather — he has a +8.1 UZR/150 at 3B. His bat lags behind, however.

It seems like the switch-hitter might be trying to make more contact, to the detriment of his power and overall offensive performance. During his rookie season in ’07, Headley struck out 31.4%, with a 72.7 Contact%. Last year, he whiffed 24.5% and made contact 77.8%, and this season he’s punching out 20% with an 81 Contact%. His ISO over that time frame has dipped from .151 to .131 to .093. Headley’s wOBA has declined three years running as well, going from .334 in 2008 to .328 last year to .305 in 2010.

Considering that he’s not drawing many walks this year (5.7 BB%) while just blooping some singles, it’s not surprising that Headley’s offense has been below-average even after accounting for cavernous Petco Park — his wRC+ is 95.

Chris Tillman, Orioles

Tillman, 22, has fantastic long-term potential. He was ranked as a top 100 prospect by Baseball America prior to the 2008 and 2009 seasons, and he has 8.5 K/9, 2.2 BB/9 and a FIP around three in 154.1 innings at the Triple-A level over the past two years. Past scouting reports lauded his low-90’s heat (peaking around 94 MPH) and above-average curveball, delivered from a lanky 6-5 frame.

In the majors, however, Tillman’s stuff hasn’t looked as sharp. Tossing 15 innings for the O’s this year, Tillman has a 7/8 K/BB ratio, with 15 runs surrendered. His average fastball velocity is slightly under 91 MPH. In 80 combined IP over the past two years, Tillman has 5.18 K/9, 3.6 BB/9 and a 5.31 xFIP. Both his four-seam fastball and curve have below-average whiff rates in the bigs so far (4.6% and 7.5%, respectively), which helps explain the lack of K’s. As an extreme fly ball pitcher (36.5 GB% in the majors, 39.7 GB% in the minors), Tillman needs to miss more bats and display sharper control. There’s nothing alarming here long-term, but Baltimore could send him back to Triple-A to work out the kinks.