Emmert and the N.C.A.A.’s Board of Governors said they made a mutual decision for him to step aside next year as the top administrator in college sports.
The Pioneers are now tied for most Division I men’s college hockey titles with Michigan, the team they beat in overtime in the national semifinal round.
The Jayhawks rallied from a 16-point deficit to down the Tar Heels in a thrilling — and intensely physical — N.C.A.A. men’s basketball tournament championship game.