Giovanni Trapattoni is one of the most celebrated managers in history.
After spending a year as Milan's manager, Trapattoni moved to Juventus in 1976, where he spent the next 10 seasons.
In those 10 seasons, Juventus was incredibly successful domestically, winning six league titles and two Coppa Italia titles. In Europe Trapattoni won every competition there was to win. Juve claimed the UEFA Cup in 1977, the Cup Winners' Cup in 1984 and the European Supercup that summer.
In 1985 he crowned his tenure with the team's first European Cup, although the final match against Liverpool was overshadowed by the tragic Heysel Disaster.
Two years later Trapattoni moved to Inter, where he won one league title and a UEFA Cup in five years. A three-year return to Juve followed, where he again won the UEFA Cup in 1993 by beating Borussia Dortmund.
Trap then left Italy for the first time, spending a season at Bayern Munich before coming back to Italy to coach Cagliari for a year. He left the Isolani to return to Bayern, where he won a league title and a German Cup in two more years in Bavaria.
He returned to the Serie A for two years at Fiorentina—getting la viola to the Champions League—before spending four years as the manager of the Italian national team. His Azzurri were knocked out of the 2002 World Cup in controversial fashion in the round of 16, and a poor showing at Euro 2004 saw him replaced by Marcello Lippi.
Trapattoni dove right back into the club game in Portugal, Germany and Austria before going back into the international game as coach of the Irish national team.
Trap's tactics have always leaned towards the defensive. During his unsuccessful stint at Stuttgart, several of his players accused him of being afraid to attack.
Something obviously worked, though. Trapattoni has won 10 league titles in four different countries (Italy, Germany, Portugal, Austria) and is the only manager in history to have won the European Cup, UEFA Cup, Cup Winners' Cup, European Super Cup, and Intercontinental Cup. All of his European and intercontinental titles came with Italian clubs, and his seven scudetti are a most impressive achievement.
Between his success in Europe and domestically, Trapattoni is the best manager in the league's history.