NBA 2K13 MyCareer Roster PC

Is there a way to prevent the CPU in MyCareer to make any roster changes? Because the rosters in the PC version don't sync with the rosters in the game, I want to use the Roster Editor myself to make changes that happen in the season. It gets hard if the CPU makes changes by signing or trading with players.

Not as far as I'm aware. I believe you just have to reverse any transactions that occur.