After college, Bradley served as the head coach at La Salle High School in Philadelphia through 1937. In 1939, he served as an assistant coach at his alma mater, and in April of the following year, he was hired by his former college coach at Loyola Marymount. He worked as the line coach and scout for two seasons. In August 1942, Bradley was promoted to replace Brill as the head coach at Loyola. He led Loyola to a 5–4–1 record.
In March 1943, Bradley resigned his post at Loyola to return as head coach at La Salle High School. In 1949, he joined the coaching staff at Villanova as a line coach. In 1950, he worked as the freshman coach and as a scout for the varsity team.