He also later played for Brescia (1950–51), and Parma (1951–55), also winning the 1953–54 Serie C title.

[1][3] Fabbri was the head coach of the Italy national team from 1962 to 1966, with a record of 18 wins, 6 draws and 5 losses, and led the team in the 1966 FIFA World Cup, where they were eliminated in the first round after surprisingly losing to North Korea; Fabbri was let go following Italy's elimination from the 1966 World Cup.

[4][1] During his career, he also coached Torino (1967–69, 1974–75), Bologna (1969–72), Ternana (1976), Reggiana (1982–83) and Pistoiese (1980–81), helping the club to a Serie A spot.

[1][3] With Torino, he won a Coppa Italia in 1968, and he also won a second Coppa Italia title with Bologna, as well as the Anglo-Italian League Cup, in 1970.

[3][1] Fabbri died at Castel San Pietro Terme on 8 July 1995.