The arrival of Ronaldo in Turin has led to questions over the future of the Argentina international, with reports linking him with a move to LaLiga and the Premier League.
Palermo owner Maurizio Zamparini, who sold Dybala to Juve in 2015, even claimed the forward has already received offers from Spain and England and will change clubs in January.
But Juve icon Pirlo believes he still has a future with the Bianconeri, providing he shows the same commitment as his new team-mate.
"The qualities of Dybala are not in question," Pirlo told Tuttosport. "When you do not play, it means you have to do something more.
"To become an important player for Juventus he must find something inside him. First and foremost, he must do it for himself.
"Accepting that you're not a starter is not easy for anyone. Paulo will do everything to play as much as possible.
"If he starts training with the desire of Ronaldo then it will be difficult to leave him out."
— Cristiano Ronaldo (@Cristiano) September 6, 2018