Capello will use the tactic as he did with Roma. He will use a holding defensive midfielder, most likely Tacchinardi, allowing Emerson to travel more forward to use his creativity around the box. As whether or not we'll use a back 3, I'm not sure. If we buy Oddo, I don't think so. But this system seems to fit what we have and what we almost have:
Buffon
Zebina - Thuram - Legrottaglie
Zambrotta - Tacchinardi - Emerson - Jankulovski (?)
Nedved
Trezeguet - Del Piero