Lee served as an assistant taekwondo coach for the USA at the 1988 Summer Olympics and as taekwondo coach for the USA at the 1992 Summer Olympics. He was also head coach of the Colorado Springs Olympic Training Center's Resident Athlete Program for taekwondo from 1988–1993. Lee has operated the US Taekwondo Center in Aina Haina from 1993 to early 2000 and has trained over 10,000 students. In 2004, he was removed from the position of taekwondo coach for the USA team due to compete at the Summer Olympics in Athens.