The org never communicated well to him. If they truly wanted to move him off 3b permanently, they should have considered where he'd play in the future. If Cora said "throw away your glove, you're DH" it's pretty dumb. Why not have him be the 1B/DH and just have him play 1B like once a week just in case. That should have been the plan all along. It just was handled so poorly by Devers, Cora, Breslow...