The best formation would be:
Buffon
Thuram........Legrottaglie........Montero........Zambrotta
............................Appiah........Davids...........................
...........Camoranesi........Nedved........Di Vaio................
........................................Trez......................................
But to be fair I think Maresca should finally get a chance, either in a deep or in a more attacking role. Then of course Miccoli should get to play, but since he's still not 100% fit he will start on the bench. I'm not sure if this formation fits Di Vaio, but he played in a similar role against Roma where he was good, so I guess he shouldn't disappoint.