I'd let it go unless you suspect collusion is involved. In a league I'm in there are trades that at face value appear one-sided, but make more sense when you consider the relative strengths and weaknesses of the teams involved. I traded Vidro for Gagne and Rusch. On the face of it I think it would look like a bad trade for me. However, given that I already have Baez on my team, it means that I'm assured of having the Dodgers' closer for the rest of the year, along with Dempster, so I'm quite solid in the saves category. And I still have Walker and Weeks at 2B, so I could afford to trade Vidro. And I'm 19-1 in two weeks since making that trade, so obviously it didn't hurt me. Beauty is in the eyes of the beholder.