General Manager of the Los Angeles Dodgers, Colletti previously served as Assistant General Manager for the San Francisco Giants. With his roots in the midwest, in 1982, Colletti began his Major League career with the Chicago Cubs. He was a member of the front office when the Cubs won the National League East in 1984 and 1989. Colletti left the Cubs and joined the front office of the San Francisco Giants in 1994 as Director of Baseball Operations. He was promoted to Assistant General Manager in 1996.
Colletti became the 10th General Manager in Los Angeles Dodgers history in 2005. Colletti reached 500 wins as a General Manager on September 9, 2011, when the Los Angeles Dodgers beat the Giants 2-1 in San Francisco. Since Colletti took over the Dodgers in 2006, no active general manager in the National League has won more games.
He was inducted into the National Italian American Sports Hall of Fame in 2012. He was also inducted into the Triton College Sports Hall of Fame in 1993.