Pirlo had only re-joined Juve as Under-23s head coach a week earlier before the Bianconeri gave the 41-year-old his first senior coaching role at the Italian powerhouse, where he won four Scudetto titles among other honours during an illustrious playing career.
While there have been teething issues and a stuttering start, World Cup winner Pirlo has already tasted success for the first time as a coach in the Supercoppa Italiana, while Juve are seven points off the pace in Serie A, through to the Champions League last 16 and preparing for double-tied Coppa Italia semi-final against Inter.
Vieri spent time with Pirlo at Inter and within the Italy national team and he talked up the playful side of his former team-mate – who remains in the hunt for a Serie A, Champions League and Coppa Italia treble in his maiden season at the helm.