Crowley started as an assistant coach at the University of Georgia. He quickly moved to head coaching positions at Michigan State University and Fordham University, where his famed line, the "Seven Blocks of Granite," included Vince Lombardi. His Fordham teams played in the Cotton Bowl Classic and Sugar Bowl. His overall record was 78–21–10. Crowley also served as commissioner of the All-America Football Conference. He later entered business in Scranton, Pennsylvania. The last surviving Horseman, Crowley died in 1986 at the age of 83.