Miller served as an assistant coach at Colorado State, helping the school to an 81–20 (.802) overall record during his three seasons there.

His best season came in 2006 when he led the Falcons to a 31–4 mark, including a sweet sixteen appearance in the NCAA tournament.

[4] The Indiana Hoosiers were on that list and, when an opening for head women's basketball coach occurred at the school in 2012, he applied for and got the position.

[5] After one season as an assistant with the Los Angeles Sparks, Miller returned to the head coaching ranks.

His 2021 team finished the regular season in first place with a 26–6 record,[11] but were upset in the Semifinals by the Chicago Sky.

[14] While working with the Sun, Miller was "the first openly gay, male coach in college or professional basketball".