Butler has promoted former player and assistant coach Brandon Miller to fill the vacancy left by coach Brad Stevens, who was hired this week to coach the Boston Celtics.
Athletic Director Barry Collier announced the hiring of Miller on Saturday.
Miller played at Butler through 2003 as the team built a 77-20 record over a three-year span, earned three conference championships and appeared in three postseason tournaments.
Miller returned to Butler in April as an assistant coach. He last worked at Butler during the 2007-08 season, helping the Bulldogs to a 30-4 record, conference regular season and tournament championships and another berth in the NCAA tournament.