I find it hard to believe that Ranieri will implement a 4-3-3 on a regular basis. I think DP-Amauri-Trez will be tactically hard to pull off. Amauri and Trez are too similar and playing off of Del Piero could create a tactical mess. I think we'd see similar problems to what Milan witnessed when Gilardino, Inzaghi, and Kaka played together....Amauri and Trez will duplicate their runs if Del Piero is behind them for support. Either it has to be only the two up top, or one of them must be dropped for Iaquinta.
Tactically, it honestly has to be one of these:
1. Del Piero with anyone
2. Amauri and Trez (without a third striker)
3. Del Piero - Trez - Iaquinta
4. Del Piero - Amauri - Iaquinta