Just read through this thread.
http://www.ootpdevelopments.com/boar...d.php?t=296298
Sounds kind of similar to what is happening to me, except the AI isn't even replacing the guys it's dropping. Just leaving my roster partially empty. And my team does not meet the criteria for being AI managed. 5 man rotation, 7 man bullpen, full lineups with 4 bench players.