Ingle entered the world of Division I college basketball in 1989, when he joined Roger Reid's staff at Brigham Young University in Provo, Utah. Ingle served as an assistant under Reid for seven seasons. During that time, BYU saw tremendous success on the basketball court: the Cougars won five WAC championships and made five appearances in the NCAA Tournament. However, the program crashed early in the 1996-97 season. The team was decimated by injuries, and several key players left the school. After starting the season with a 1-6 record, Reid was fired, and Ingle took over as interim head coach. BYU didn't win another game the rest of the season, posting an 0-19 record under Ingle.