i think the main forward in Lippi schme is Di Natale, Maybe Amauri (if he want to be italian), Luca Toni, Giuseppe Rossi and Totti. I think Lippi did not like a controversial player like Balotelli
i think Lippi prefer choose Cassano than Baleotelli. but i think maybe you see in another views. but i analyze that Lippi did not call up Balotelli and Cassano too because they always make disharmony in a team