La Viola won three of their first four league games in a strong start to the campaign, but have since failed to record a victory in three matches.
Montella believes that Juve's trip to Tuscany this weekend will sharpen focus amongst his squad, describing the chance to pit his wits against Antonio Conte as a "major challenge."
He told reporters: "I am aware how important this major challenge is," he told reporters. "It's important for the club and all the fans.
"We are preparing to do better than we did last year, even though we did quite well against Juve. Our goal is to satisfy the fans. We want to win."
Juve are still unbeaten in all competitions this season, amassing 19 points from a possible 21 to sit second in Serie A.