The 2012 Coppa Italia Final Victory for Walter Mazzarri 's Napoli on May 20 becoming the high-note of their season , and it was their first title since the club legend Diego Maradona played for them over 15 years ago .
Napoli ended the season on a high-note , however , as they won the 2012 Coppa Italia Final over undefeated 2011�12 Serie A champions Juventus on 20 May ; this was Juventus 's only loss of the season , and Napoli 's first title in over 20 years , when club legend Diego Maradona played for the club .
Walter Mazzarri