The reigning Serie A champions' hopes of retaining their title suffered a massive blow over the weekend after goals from Arturo Vidal and Nicolo Barella consigned Juve to defeat against title rivals Inter.
Following the match, Pirlo held nothing back in the criticism of his players who he accused of lacking the attitude needed to win the match.
"We got the attitude wrong from the start and when you don't have the determination to win duels, it becomes difficult," he continued.
"We just didn't step onto the pitch, we were timorous, afraid of Inter's attacking play, so in our minds we only focused on defending and weren't even very aggressive with that either. We allowed Inter to take the initiative and they became devastating in those circumstances.
"Individual quality can only shine if you first match the opposition in terms of aggression and determination. We didn't do that and it showed."
