I'm not sure Effross can be blamed on the Yankees, but that aside, the track record is not good.
For the life of me I still don't know (especially when considering how innings focused the organization has been under Cashman) why they didn't remove Gil from the rotation late August last season and have him finish the year in the bullpen.
The pitch clock could be a part of this, but if it is, it's due to the pitchers being more mentally stressed and not using proper mechanics, due to feeling rushed than anything else. A few decades ago many pitchers would throw 120+ pitches in a game that barely went more than two hours. There isn't a significant amount of rest needed between pitches.
My guess is that everyone is so focused on spin rates that they're getting far too much of their velocity from their wrists & elbows and nowhere near enough from their legs and core.