Goals from Alvaro Morata, Gianluca Frabotta, Dejan Kulusevski and Federico Chiesa earned the 3-0 win.
“Our objective was to get through and we did it against a team that has done well this season in both the Coppa Italia and their league," Pirlo told RAI Sport.
“It was important that we take them on with conviction and we did that from the first minute."
The coach has made very good use of the youth players, especially because Juventus are the only club in Italy who took advantage of the rule change allowing for an Under-23 team to play in Serie C.
“Juve were the first and only club to create a B-Team and I think it was a great move for the development of these players. It's one thing to pluck players from the youth academy, quite another to get them from a team currently in Serie C. I believe other clubs ought to open their minds a bit more."
Teenager Nicolò Fagioli was given his senior Juventus debut this evening.
“He's an interesting lad, he's been training with us for some time. He arrived with me as a trequartista, but I believe he can also work as a playmaker and has good vision."