The Boston Bruins lost a key piece to their front office this week. 

Various reports are starting to surface that John Ferguson Jr. has left the team to join the Arizona Coyotes. 

Ferguson had served in various roles with the B's over the last couple of years but recently had been moved from Assistant General Manager to Executive Director of Player Personnel. 

A move he apparently didn't like too much. 

Coyotes insider Craig Morgan reports that he'll be named Assistant General Manager for the Coyotes and also be in charge of the Coyotes AHL team the Roadrunners. 

More details to come. 

Source: Craig Morgan