Colorado athletic director Mike Bohn is resigning effective June 3.
Chancellor Philip DiStefano said Tuesday in a written statement that he had accepted Bohn's resignation. Reasons for the resignation weren't disclosed.
During Bohn's time at Colorado, the Buffaloes moved from the Big 12 Conference to the Pac-12 and sent their basketball teams to the NCAA tournament. But football coach Jon Embree was fired after the team went 1-11 last season.
DiStefano says he will appoint a committee in the coming days to conduct a national search for Bohn's successor. He says the next athletic director should be someone who can focus on key goals, including fundraising.
Bohn became athletic director in 2005 after Dick Tharp resigned.