Sidney Moncrief was an assistant coach with the Dallas Mavericks under head coach Don Nelson.
Moncrief, a 1979 graduate of Arkansas, is still the Razorbacks school record-holder in rebounds, free throws and free throw attempts. He also is the school's all-time leading scorer with 2,066 points. He averaged 16.9 points and 8.3 rebounds in his college career. As a senior he was named to the All-America team after leading Arkansas to the 1979 NCAA Final Four.
He played 10 seasons with the Milwaukee Bucks, under Nelson and then-assistant Del Harris, from 1979-1989. Following a one-year retirement, he finished his career with the Atlanta Hawks in 1991. During his career, "Sir Sid" averaged 15.6 points and 4.7 rebounds per game. He was a five-time All-Star, a two-time NBA Defensive Player of the Year and was named to the All-NBA team five times.
Following his retirement, he became head coach for one season at the University of Arkansas - Little Rock. He then joined his old coach Don Nelson as an assistant with Dallas for three seasons. After he left he again tried head coaching, this time with the NBA D-League's Fort Worth Flyers.
After one season, he left to rejoin Nelson as an assistant with Golden State.
Following his stint with the Warriors, Moncrief coached in China and today does team building, leadership and diversity training.