The problem is that Conte just doesn't want to regularly field any two strikers. Even when he performed quite well against Hellas and Chievo he didn't get the third call up. He has what we need to unlock the defensive minded teams. He's arguably better than Vucinic with his back to goal and connects with crosses. Maybe Conte's just too nice and doesn't have the heart to keep Giostinko on the bench for too long.