Juve sold a half share in the attacker to Parma last summer for â¬3.75m, but bought him back earlier this month for â¬11m.
âI hope that he can find some consistency in Turin,â the former Azzurri boss told Sky Sport Italia on Wednesday.
âIt is clear that no player can be assured of a first team shirt, he must therefore show what he can do when called upon.
âGiovinco has grown up a lot, but he can still improve. He will become an extraordinary player.â