CC Sabathia is looking more and more like a reliever–or less and less like a capable starter, at least–but the Yankees will keep him in the rotation and instead move Adam Warren back to the bullpen despite his team-best 3.59 ERA in 14 starts.
New York briefly went to a six-man rotation following Ivan Nova’s return from Tommy John elbow surgery, but the plan was always to go back to five starters and Warren’s previous experience in the bullpen likely contributed to his role being changed while Sabtahia (5.65 ERA) and Nathan Eovaldi (4.81 ERA) remain starters.
(Sabathia making a ton of money and the Yankees viewing Eovaldi as having more long-term upside than Warren also played a part, certainly.)
Warren thrived as a setup man for David Robertson last season, appearing in 69 games with a 2.97 ERA and 76/24 K/BB ratio in 79 innings. And the Yankees’ bullpen can use the late-inning help with Andrew Miller on the disabled list.