Miller had his best college season during his senior year, helping with a 28–8 record. Averaging 17.2 points and 8.8 rebounds in his last season at Purdue, he led the Boilermakers to a Sweet Sixteen appearance and a 2nd overall seed in the NCAA Tournament. Miller set a school tournament record with 6 steals in a win against Delaware. His last collegiate game was a loss to Stanford. Miller's biggest game of his senior season came against Michigan State, where he scored 30 points and pulled down 12 rebounds to force Michigan State to share their Big Ten crown.