Professional Basketball Coach. He coached the National Basketball Association's Cleveland Cavaliers, San Antonio Spurs, New Jersey Nets, and Chicago Bulls from 1979 to 1986. He played basketball collegiately at Bradley University, but went undrafted in the National Basketball Association draft in 1955. His coaching career started the next year at Adrian College in Michigan. He went on to coach at Northern Michigan University from 1957 to 1968. In 1968, he joined the University of Denver as their head basketball coach. Two years later, he joined the American Basketball Association's Denver Rockets as an assistant coach (he served as an interim head coach for the Rockets from 1970-1971) and remained at the job for the next three years. He went on to serve as an assistant coach with the ABA's San Diego Conquistadors and Kentucky Colonels. From 1976 to 1979, he was an assistant coach in the NBA with the Los Angeles Lakers. In 1979, he became the head coach of the Cleveland Cavaliers and served in this position for one year before joining the San Antonio Spurs as their head coach. He served as the head man of the Spurs for the next three years. While with the Spurs, he was the NBA's Coach of the Month in March of 1983. After leaving the Spurs, he joined the New Jersey Nets for the next two seasons. In 1985, he became the head coach of the Chicago Bulls where his tenure lasted only one season. The next year, he joined his alma mater, Bradley University, as their head basketball coach and coached the Braves for the next five years. He went on to serve as an assistant for several NBA teams before a debilitating stroke left him partially paralyzed in 2002. He was inducted into the Bradley University Sports Hall of Fame in 1981 and the San Antonio Sports Hall of Fame in 2014.