Ottoneu Drip: Finding Under-rostered Pitchers: April 29, 2025

The search for pitching help is never ending. Between injuries and ineffectiveness, fantasy players are always on the lookout for pitchers who are performing well who can provide some reinforcements. Hopefully, these six under-rostered pitchers — three starters and three relievers — can help.
Player | Team | IP | FIP | K-BB% | Stuff+ | Pts/IP | Roster% |
---|---|---|---|---|---|---|---|
Ryan Gusto | HOU | 22.2 | 2.70 | 21.1% | 106 | 5.36 | 29.4% |
Jose Quintana | MIL | 23.2 | 3.35 | 7.5% | 82 | 5.00 | 19.6% |
Colin Rea | CHC | 18.2 | 1.50 | 21.1% | 98 | 6.84 | 13.2% |
Chad covered Ryan Gusto in his Hot Right Now column yesterday. I mostly agree with his assessment:
“So yes, he has looked good so far. But with only 22.2 IP so far this year, I am more inclined to bet on his track record than his early performance with Houston. Double his walks, double his HR, and how are you feeling? There’s nothing wrong with riding the hot streak. That could both net you some short-term gains and give you time to see if that control and HR suppression are legit. But there are other SP out there I am more interested in right now.”
One thing I’d like to add is that Stuff+ really likes Gusto. All three of his fastballs are above league average by that metric and so is his slider. Stuff+ isn’t as enamored with his changeup but that pitch is returning a 37.5% whiff rate which is above average for the pitch type. Sure, the minor league track record isn’t there, but it’s possible Gusto has taken a pretty significant step forward in his development.
I do need to advise some caution because of the contact quality issues Chad mentioned and also because the Astros will likely activate Lance McCullers Jr. from the IL within a few weeks and possibly Spencer Arrighetti a few more weeks after that. It’s very likely Gusto will be relegated to the bullpen once Houston’s starting rotation gets a little more healthy. So, yes, ride the hot hand while you can, but don’t expect Gusto to be a long-term solution for your pitching staff.
I recommended Jose Quintana in my last Ottoneu Drip and I’m honestly shocked he hasn’t been rostered more. All he’s done since that write up is make three fantastic starts, allowing just three runs total. His strikeout-to-walk ratio isn’t great and it seems like he’s relying on a lot of guile to get by, but the results speak for themselves.
The injury to Justin Steele forced the Cubs to add Colin Rea to their starting rotation a few weeks ago. Rea muddled through the last two years as an innings eating member of the Brewers rotation, but he has made three solid starts for the Cubs against some really impressive opponents. Against the Dodgers, Diamondbacks, and Phillies, he’s allowed just two runs in 13.1 innings while striking out 17. That’s enough for me to take notice.
The biggest difference is a four-seam that he’s throwing more than half the time at the expense of his sinker. His repertoire is still deep — six pitches strong — but he’s really emphasized the heater. He’s throwing it about a tick harder than last year with a little more rise and a little more cut and it’s returning a 25% whiff rate and a .334 xwOBA, both above average marks for a four-seamer. He’s also dropped his arm angle by about five degrees which has had a positive effect on the horizontal movement of all of his pitches. The wide pitch mix, arm angle change, and an improved fastball makes him a pretty interesting pick up, though I might wait to see how he does in a few more starts before rushing out to add him.
Player | Team | IP | FIP | K-BB% | gmLI | Stuff+ | Pts/IP | Roster% |
---|---|---|---|---|---|---|---|---|
Will Vest | DET | 12 | 2.80 | 23.3% | 0.83 | 103 | 8.64 | 53.2% |
Reed Garrett | NYM | 11.2 | 2.02 | 17.4% | 1.74 | 112 | 9.83 | 51.1% |
Shelby Miller | ARI | 11.2 | 1.94 | 23.3% | 1.93 | 97 | 9.29 | 14.4% |
Chad also covered Will Vest in his article yesterday and I don’t really have much more to add. If you’re speculating on saves in Detroit’s bullpen, Vest is as good an investment as any other high leverage option in that ‘pen.
Reed Garrett had a mini-little breakout last summer before burning out in August. He’s still making high-leverage appearances for the Mets this year and he’s been pretty good. The strikeout rate isn’t as lofty as it was last year, but his walk rate is down and he’s only allowed a single unearned run.
Shelby Miller was finally healthy last year but his stint in Detroit’s bullpen of death could have gone better. He latched on with the Diamondbacks this year and is throwing a little harder and added a sweeper to his repertoire. He, too, has only allowed a single unearned run in 11 appearances for the Snakes and he’s already beginning to work some high leverage opportunities for them.
Jake Mailhot is a contributor to FanGraphs. A long-suffering Mariners fan, he also writes about them for Lookout Landing. Follow him on BlueSky @jakemailhot.
I find Rea very interesting, but his Stuff+ numbers have me hesitant. It seems that they should be better than they are based on his supposed changes and success thus far. Any thoughts? Thank you.
FWIW, Stuff+ loves the pitch that’s received the most benefit from his lower arm angle: his sweeper. That pitch went from a 103 Stuff+ to 113 this year. And I’m willing to bet that Baseball Prospectus’s new arsenal metrics (unavailable to the public currently) really like Rea’s whole package even if many of his individual pitches don’t stand out on their own.
thank you for your time. appreciate it.