Early career After playing professionally in England for a year, Miller was hired as an assistant coach at
Elon University to join the staff of head coach
Ernie Nestor. Elon had a record of 12–19 in the 2008–2009 season and Nestor stepped down as head coach at the end of the year. Miller was hired at
High Point University and joined the staff of their new head coach,
Scott Cherry, the next season.
UNC Greensboro For the 2010–11 basketball season, Miller became an assistant coach at the
University of North Carolina at Greensboro under
Mike Dement. That team finished the season 7–24, in fifth place in the Southern Conference. The next year Dement retired mid-season and Miller became interim head coach. At the time, the Spartans had a record of 2–8 and were in the midst of an eleven-game losing streak. Under Miller, the team finished Southern Conference play with a 10–8 record, 13–19 overall, winning first place in the Southern Conference North Division. Miller was named the 2012 Southern Conference Coach of the Year and was hired officially as head coach. Miller spent the following ten seasons as the UNCG men's basketball coach. During his tenure UNCG saw an unprecedented run of success, reaching 25 wins for three successive seasons between 2016 and 2019, winning three Southern Conference championships, reaching the NCAA tournament in 2018 and 2021, and recording the program's first postseason victory in 2019. Miller is the winningest coach in UNC Greensboro history, with 185 victories.
Cincinnati On April 14, 2021
Cincinnati hired Miller to become their next head coach, replacing
John Brannen. He finished his
first season leading the Bearcats to a 18–15 record, while going 7–11 in conference play. They placed 8th in the American Athletic Conference. On March 19, 2026, it was announced that he and Cincinnati had agreed to a separation. Miller's Bearcats went 100–74 in his five seasons coaching the team, with no appearances in the
NCAA tournament.
UNC Charlotte On March 23, 2026, Miller was named the head coach of
UNC Charlotte. ==Personal life==