 Throughout his playing career, Baumgartner attended Long Island's Hofstra University during offseasons, where he earned a degree in business and finance.In 1994, while still a member of the Maple Leafs, Baumgartner was elected vice president of the NHL Players Association and he played a role in establishing the collective bargaining agreement between the NHLPA and the NHL during the 1994–95 season.Following his retirement as a player, Baumgartner joined the coaching staff of the Bruins as an assistant coach for the 1999–2000 season, before attending an MBA program through Harvard University.