Following the firing of Peter Chiarelli as Bruins' general manager on April 15, 2015, speculation had surrounded Sweeney's status within the Bruins front office, as Sweeney's early May 2015 meeting with Bruins head coach Claude Julien may have been an indication that as well as Julien remaining as the Bruins' head coach into the 2015–16 season, Sweeney could possibly been in line to become the Bruins' next general manager. On May 20, the Bruins named Sweeney as the team's general manager.