Define great Dus, please..
You know what's great in everything? Great in everything is a combination of players like Zidane, Rivaldo, Del Piero, Maradona, Platini...players that have left their mark in football history. That's called greatness.
Cassano isn't great in everything, seriously, playing for Sampdoria, failing at Madrid and not even leaving a good mark at Roma is anything but a great at everything like you call him.
Just like you think too many anti-Cassano around here, I think there are too many fans that can tell a player if he's bad from good because of some successful dribbling....