by lane_anasazi2 » Mon Apr 11, 2011 2:36 pm
Unfortunately this is the downside of having a system where veto power is left in the hands of those who have a vested interest in the outcome of the trade. That is, if they see one or even both teams getting better, it makes the chances of their team winning go down.
If your league uses the "manager vote" option, this is going to happen. You can try to lay out rules for what constitutes a valid reason for vetoing, but since it's all subjective (based on personal player analysis), managers are going to veto for whatever reason they want.