Is it a bad trade? Yes,can you prove there is collusion? No,therefore you let it slide this time. If bad trades keep happening you question it,and then get out of the league if its a huge problem. In my league a few years back a guy traded Rafalski when he was an elite talent to the top team looking to win for Letang when he was doing nothing,long story short the guy who got Letang got the better end of the deal.