It makes no sense to move Iaquinta anyway, I'm relieved that he's apparently staying.
World class teams in top competitions tend to have at least four "top end" (opinions may vary) strikers:
Real Madrid: Van Nistelrooy, Higuain, Saviola, Raul, (Robinho)
Manchester United: Rooney, Tevez, Saha (C. Ronaldo, Giggs)
Barcelona: Eto'o, Ronaldinho, Henry, Messi, dos Santos, Gudjohnsen, Krkic
Liverpool: Torres, Kuyt, Crouch, Voronin, (Babel)
Chelsea: Drogba, Shevchenko, Anelka, Kalou, Pizarro
AC Milan: Pato, Gilardino, Ronaldo, Inzaghi, Oliveira*,(Kaka)
Inter Milan: Cruz, Ibrahimovic, Crespo*, Suazo
*Loaned or On Loan
() - Played as forward/support striker recently
I fail to see how Juventus couldn't use the following:
Del Piero, Trezeguet, Amauri, Iaquinta, Palladino, (Giovinco)
It seems to fit right in with those top teams.