This is Italy's standard formation, but players in the formation can vary, but this are the ones I think are the best best suitable for this formation. Di Natale and Del Piero are not playing as wingers they are playing as support strikers or interior forwards as sometimes they are called like that. They are really not that different except that wingers play stuck to their line wide while interior forwards have more freedom to move where they want.

If I was coach for this team I would probably substitute De Rossi for Simone Perrota if he is not doing good.