Rossi opened the scoring in victory over Estonia with a wonderful goal after Prandelli opted to play without a centre-forward in a 4-3-1-2.
"Rossi proved himself to be a complete striker yesterday. He was excellent, combining technique with speed of execution.
"He is a great professional, now mature, and it is a shame that he left Italy to play his club football elsewhere. Some people didn't believe in him
"We can use yesterday's system again, but only if every player does their job. There are no sure starters in this team. Healthy competition can help players to give their best.
"It's now up to us to get closer to the best national sides, but, I repeat, we have achieved nothing yet."