miccoli, maresca and even appiah should all start without doubt each week. but that doesnt mean that del piero gets dropped. they are all able to play at the same time, and thinking otherwise would be ignorant. defence or no defence, we conceed goals.
as for trezeguet, everyone wants this new striker to take over him and create for himself and score 30 goals a season and so on. but if he is sold, which striker is going to do what trezeguet does and everything else others have stated? Adriano just signed for Inter, Henry wont leave Arsenal, and if he does, Juve would be the last club he'll wanna join again. Zlatan wont score 30 goals a season like trez can. Vieri is similar to trez. kluivert doesnt score enough. Cavenaghi is unproven.
so as far as i am concerned, its clear that when trez plays upfront with del piero or miccoli, he does score goals. Di vaio wastes too much, even though he is more active, but he should be the one to leave.
the last striker we had at the club who resembles a striker who is very active was Boksic. he could create, dribble, was very very fast..but he couldnt finish if his life depended on it. abit like Di Vaio i suppose, except di vaio wastes maybe half the chances whereas boksic would waste a lot more.
so in the end, what we need a striker who is going to score the 30 goals a season, and trez can do this. its no good getting srtikers who cant because who is going to score our goals? del piero, miccoli can only do so much.