I though we already discussed this and discussions went in a wrong way because of Barzagli.
I think you made a very realistic squad. I like the defense, except I would maybe swap Barzagli for Samuel.
In midfield, Giannichedda is leaving so you can´t count on him. On the other hand, Tacchinardi and Blasi will return. We could trade them for another good DMC or bring Nocerino back. I like your choice of a DMC too although I don´t know what Diarra you mean. You are forgetting that Kapo will be back, so we are covered good with wingers.
I would also like to bring a creative midfielder like Diego. If we could somehow bring him, I wouldn´t change anything in the attack line.
I would like to get rid of Zalayeta, Birindelli and Kovač.
So, my squad would be somehow like this:
GK: Buffon, Mirante, Belardi.
CB: Samuel, Criscito, Metzelder, Grygera, Boumsong.
LB: Chiellini, Balzaretti
RB: Salihamidzic, Zebina
DMF: Paro, Zanetti, Sissoko, another DMC
SMF: Kapo, Marchionni, Camoranesi, Nedved
AMC: Diego
FW: Bojinov, Palladino, Delpie, Trezeguet.
Happy??