If we will play 4-2-3-1 which is very likely, we will have to Trezeguet, Amauri and Iaquinta for one position.
One player must to go. Maybe Iaquinta, who will want to play in the composition of 1 squad, because he want go to World Cup 2010.
If you want to be in Juve must sell Trezeguet, who is often injured.
Come Quagliarella, who can play the position where Amauri and Iaquinta/Trezeguet, but can also play on the wing ( Giovinco-Diego-Quagliarella ) + one striker: Amauri / Iaquinta. (4-2-3-1) - Spalletti played this setting, and he is close to Juve.