Yes, very little can be done, right now without creating other weaknesses somewhere else.
I doubt we make major changes, this winter, either, but we can take a few steps, this year, and when Bogey opts out (or before) try and replace him with a great glove without losing much offense, at all. Yes, that will cost money, but so will keeping Bogey.
With Dalbec and casas at 1B, I doubt Devers changes position. The good thing is, he's still young enough to improve his D. He's younger than Dalbec and Duran.