Vlahovic struck twice in Juve's victory over Sassuolo this week.
De Biasi said, "I believe that yesterday Juventus carried out its task and won with a certain ease, a 3-0 gives confidence and they still do not have the team in top condition and all the players available.
"I met Vlahovic directly, he is a player you cannot miss, he has everything, he is complete, young. At Juve he has not yet had time to demonstrate his value.
"If Juve organises itself, with a game that often reaches the attack they will do well."