Following his graduation from Notre Dame in 1925, Crowley played in just three professional football games with the National Football League's Green Bay Packers and Providence Steamrollers. In 1925, the Waterbury Blues signed Crowley, to join ex-Horseman Stuhldreher in the backfield against a team from Adams, Massachusetts. Crowley's regular job at the time was assistant coach at the University of Georgia. The Blues put on a good show by driving to a 34–0 triumph, with Crowley scoring three touchdowns and Stuhldreher booting two field goals and three extra points. Crowley picked up his check after the game and left the team. Crowley stayed in football as an assistant coach at Georgia and was named head coach at Michigan State University, then known as Michigan State College, in 1929. In fo