I'm with Jack on this. It's what follows after Cassano that scares me. I'm talking summer mercato.
Cassano comes free, Dinho leaves for free and Cassano's wages are at least 1/3 smaller than Dinho's. Pato is sold and with the Pato money they pay the transfer fees for Zlatan and Boateng (29m eur, I think). In such a scenario they have Robinho, Zlatan and Cassano in attack and 0 euro spent. Whatever budget they have for the summer will be used to buy midfielders and defenders.
To make this short, Cassano to Milan opens up a lot of possibilities. Some will say that Pato going out will be a big lose, and it will be, but that's what has to be done by Milan to make the team stronger (by getting good money for Pato). Even without Pato the attack with Cassano, Ibra and Robinho is a top attack, but Pato's sale could give the necessary funds for strengthening the other areas.
I so wish the above scenario will never materialize.