miller served as the head coach of the usa men's under-19 junior national team, which competed at the 2015 fiba under-19 world championship. the usa team ended up with a perfect 7–0 record and a gold medal. as a result of this performance, miller was named the co-national coach of the year by usa basketball. he was replaced in 2017 by close friend john calipari as the head coach, ending his 2-year run.