I put him in the middle tier because it's so hard to evaluate managers. Two plusses in Baldelli's side that keep him out of the bottom rung:
1. His teams seem to have pretty strong second halves
2. No clubhouse drama that reaches the public
Those are good indications he manages a solid clubhouse, which is a huge part of managing in today's game.
As far as in-game management goes, I find him entirely pedestrian. He plays it pretty much by the book, which is fine. When he does stray away from the book, particularly in 2021, the results have been less than stellar.