O'Toole had been an assistant coach for the Fordham Rams (1988-89), Army Black Knights (1989-90), Iona Gaels (1990-91), Syracuse Orange (1992-95), Duke Blue Devils (1995-97), and Seton Hall Pirates (1997-98) [REF].
In 2013, O'Toole became the director of basketball operations for the Syracuse Orange (2013) and went to the Final Four.