 He led the Aztecs to two "small college" undefeated seasons in 1966 and 1968 and from the College Division (now Divisions II & III) to the University Division (Division I FBS) in 1969.San Diego State was a charter member of the Pacific Coast Athletic Association, which was founded on July 1, 1969.Coryell was head coach for a total of 12 seasons with the Aztecs, using the philosophy of recruiting only junior college players.