Cassano would still make me pissed off, when I think about it. I'm Antonio's biggest fan and believe he is hugely talented for what it's worth, I really rate him. Why not get him at the start of the window and make it clear from then that you want to sell Diego? Why design a system (4-4-1-1) around a player who was never guaranteed to stay at the club anyway? Why not just start Del Piero who we all knew would be at the club this season? Why let the team gel with Diego in the starting eleven for two months, and let him start in ALL of our competitive fixtures?
Cassano may have sorted out a lot of his problems but he will still have to adapt to a new team, away from this "big fish small pond" situation he has at Samp.