Coach Kelvin Sampson's son is Kellen Sampson, who serves as an assistant coach and head coach-in-waiting for the University of Houston men's basketball program. Having played college basketball as a guard under his father at Oklahoma, Kellen transitioned into coaching with stints as a graduate assistant at Indiana and Oklahoma, followed by assistant coaching roles at Stephen F. Austin and Appalachian State. He joined his father's staff at Houston, where he helps direct team operations, recruiting, and tactical strategies.