Ya'll are missing the point.
Ya'll are 100% right but for all the wrong reasons.
It's not about Devers doing what's best for the team, by all accounts he probably will. Just because he should move off of 3B doesn't mean he's not allowed to be disappointed he has to do so. He loves playing, and you should try to imagine the heartbreak he must have to have to switch.
Now imagine being told this in private, getting angry, getting over it, then going out and playing ball and being a great DH. But instead he finds out in public and doesn't have that chance to grieve privately. It was an unnecessary shock. I don't think Raffy is good enough to play 3B, but I'm happy he cares enough to be pissed he's moving off of it. I feel bad he has to live in a world where people can't see past the forest for the trees and see what really happened yesterday.
This might be the biggest mountain ever made of a mole hill.
Call me back if he refuses to take batting practice next week and he's still talking about staying at 3B.