The Yankee rotation is in kind of a funny spot. Gerrit Cole, Nestor Cortes, and Luis Severino offer one of the best top threes in the game, but you’d be forgiven for being worried about any of them. Cole has had his performance warts, Cortes is coming off his biggest workload ever, and Sevy carries injury concerns. Although the ceiling for the rotation is high, it wouldn’t be a bad idea by any stretch to bolster the depth.
Having said that, I’m never a fan of depth-only moves, especially in free agency. It’s the Yankees; they can afford it.