Assistant coach Marr's first coaching experience was as an offensive coordinator at the
University of Delaware from 1992 to 1994. The Blue Hens secured the North Atlantic Conference championship each year of his tenure there. Marr then served as an assistant coach and offensive coordinator under
Dick Edell at the
University of Maryland from 1995 to 2000. In that period, the Terrapins advanced to the NCAA tournament final in
1995,
1997, and
1998.
University at Albany Marr took over as head coach at the
University at Albany for the 2001 season. In 2002, his Great Danes captured the
America East Conference regular season championship, and Marr was voted as the conference Coach of the Year. The following year, Albany made its first appearance in the NCAA tournament. Marr was named the 2007
USILA Coach of the Year. The position, however, ultimately went to former
Harvard head coach
John Tillman.
International competition In 2006, Marr served as an assistant coach for the
United States national team, which secured the silver at the
World Lacrosse Championship. ==Personal life==