In 1975, Duell followed his brother Daniel in joining the New York City Ballet corps. It was around this time that he began to harbor a "secret competitive feeling" with Daniel, he would confess years later. The intensity of these competitive thoughts and feelings of inadequacy led him to a deep depression, and after a year and a half he dropped out of the company. He later recounted in a
New York Times interview, "I couldn't avoid the comparison with Dan and other boys who were physically much more knit ... I hadn't yet worked out who I was and why I was dancing." However, four months after he dropped out, Duell returned to the company more driven than ever. Apparently having moved past his internal crisis, he and his brother became very close again, and he worked hard to perfect his art.
Suki Schorer, a former teacher at the School of American Ballet who worked with him during this period, said of him, "What God gave him to dance with wasn't terrific, but he took it and became a beautiful dancer, performing with a great musical sense." In 1980, Duell was promoted to soloist, and in 1982 as a choreographer he made his debut with the company,
La Creation Du Monde, which was well received by the critics. His dancing career flourished, and in 1984 he was promoted to principal. == Personal life ==