He is the former general manager of the Montreal Expos, Boston Red Sox, and Baltimore Orioles of Major League Baseball.
In the summer of 1977 at the age of 19, Duquette helped organize the Dalton Collegians, a semi-pro baseball team that operated out of his hometown.
[6] After college, Duquette's baseball coach, Bill Thurston, recommended him to Harry Dalton, a fellow Amherst alumnus and general manager of the Milwaukee Brewers.
He spent a few years in that position before being promoted to vice-president and general manager in 1991 (taking over for the departing Dave Dombrowski).
[7][8] In November 1993, Duquette traded second baseman Delino DeShields for Pedro Martínez of the Los Angeles Dodgers.
[9] As the Red Sox GM, Duquette made several notable moves, including drafting Nomar Garciaparra in 1994[10] and trading for Pedro Martínez in 1997 (and signing him to a six-year, $75 million contract).
He is largely considered to have laid the groundwork for that team by signing, drafting or trading for players like Tim Wakefield, Johnny Damon, Jason Varitek, Manny Ramirez, Derek Lowe, and Kevin Youkilis.
[6][11][12][13] In 2002, Duquette was dismissed from his general manager post less than 24 hours after the Red Sox had officially been sold to a new ownership group that included John W. Henry and Tom Werner.
In 2008, he was part of an ownership group that included Buddy Lewis, Terry Allvord, and Jerry O'Connor that purchased what would become known as the American Defenders of New Hampshire, (later the Pittsfield Colonials).
Other signings and acquisitions under Duquette have included, Nick Hundley, Delmon Young, Steve Pearce, and Andrew Miller.
[21] Currently Duquette is a Baseball Player Development instructor for the online sports-career training school Sports Management Worldwide.
Duquette was inducted alongside David Ortiz, Manny Ramirez, Rich Gedman, and Bill Dinneen.
[26] His other cousin, Pat Duquette (Jim's brother), is the head men's basketball coach at UMass Lowell.