I'm not sure what you mean, as I didn't mention Iago, but now you did.. I'd play Iago over Rossi.
Anyway, simple fact is that there's no way Ciro will start relying on either of those 2 youngsters, so we can now kiss the 4-2-3-1 goodbye I think. He won't have the balls to play them.
We'll get stuck with a 4-3-1-2 and struggle, keeping Gio on the bench I'm afraid.