The Yankees Rotation: Surviving on a Shaky Plan B
Rehabbing a partially torn UCL with rest was an unconventional route for the Yankees and Masahiro Tanaka since the discovery of his injury last July, and there was always the possibility that it simply wouldn’t work, with the right-hander having to go under the knife at some point. While that exact situation has yet to be realized, here we are in early May with Tanaka on the indefinite-day DL due to forearm and wrist issues. As we know, forearm injuries are a big red flag, especially when your elbow is already a little balky.
Still, the Yankees have managed to cope without Tanaka so far, putting the 25-year-old Chase Whitley into the rotation: Whitley has a 0.75 ERA/1.53 FIP, 20.4 K-BB%, and 1.08 WHIP in two starts. That’s a tiny sample, and we would be remiss if we didn’t cast a lot of doubt on his ability to keep up anything near that sort of performance, but it now bears some looking into, as do the Yankees’ plans should they hit any other bumps in the road regarding their rotation (spoiler: they almost surely will).
How good has the Yankees rotation been so far this season? Great, actually. Here’s the ERA / FIP of the starters for all 30 clubs so far this season (mouse over the chart for interactivity):
The Yankees are fifth in FIP, showing how great a surprise they’ve been this year, driven mainly by Michael Pineda. As we’ll see, that level of success in the future is dependent on a lot of things lining up.
First, let’s take a look at Whitley. He couldn’t stick in the rotation last year, eventually moving to a relief role, but he has the arsenal of a starter: fastball, slider, and changeup. I’ll say this: more people would know Chase Whitley’s name if he had a fastball that matched his secondary stuff. His slider, always an average offering, is a little different this year (he’s taken almost four MPH off of it compared to 2014, and it has an inch more vertical drop), though it’s still a fly ball pitch with not a ton of depth. It’s been good this year, but the jury is still out on whether that can be sustained. His changeup is the real prize: last year, it would’ve placed in the top-10 of swinging strike rates among starters had he qualified. At its best, it looks like this:


