Alberto Zaccheroni (Italian pronunciation: [alˈbɛrto dzakːeˈroːni]; born 1 April 1953, in Meldola, Emilia-Romagna) is an Italian football manager.He is best known for having managed a number of top clubs in Serie A, and won a scudetto with A.C. Milan in 1999. He is renowned also for his unconventional and trademark 3–4–3 tactical system.