Part of my thinking is that I feel more of a sense of urgency with Pomeranz, because he's only under control for 2 years. (Wright is under control for 4 years.) If Pomeranz is shuffled between rotation and bullpen throughout 2017 then we go into 2018, his final year of control, not really knowing what he's capable of as a starter.
I see your points, believe me. This is just my personal take on one of the few baseball things we have to talk about.