One of the things that does not mirror real baseball is the way players move in trades in HBD. The owner review period in this game (which I am all for) essentially means that if we trade ML players, we either have to work shorthanded for up to 3 games (something I refuse to do...I do inactivate minor leaguers traded) while the other owners review the deal, or play our traded players, risking injuries that would nullify the trade.
Obviously, when a guy is dealt in MLB, he leaves. There is no such issue there. Occassionaly a team might work shorthanded for a game while the replacement gets there (or Minor Leaguer gets there as a temp fill-in), but here we still have our guys active for another 3 days. That creates a problem.
I suggest that you add to the game engine either a freeze on injuries to traded players during the 3 days during which a trade is being rveiewed by the owners, or perhaps create some form of roster exemption where the traded players are in limbo (I highly prefer the first option).