Image courtesy of UMass Athletics UMass offensive coordinator Steve Casula is leaving Amherst to join Sherrone Moore's staff at Michigan as tight ends coach.  Before joining the UMass staff, Casula served as an offensive analyst for the program under former coach Jim Harbaugh.  After a rough first season offensively under Casula, the Minutemen were much better in year two of playing in his system.  An upgrade in talent at the...