The positions on pitch are relative thing if you have a flexible coach. For example against Udinese both Pepe and Krasic were in the same position on paper in 442, but in reality Krasic played a lot higher up. With Azzurri Lippi used to switch formations like a madman, he used pretty much every formation possible that includes 4 defenders and a goalie, so as long we have a good balance in players abilities and work-rate it doesn't matter whether Giovinco is SS, AM or winger on paper, a good coach will always use him close to the attackers.