Dean retired from playing after the 1956 season but made Edmonton his home and continued to coach. He was a teacher at Victoria Composite where he coached of City Senior Football Champions in 1966 and 1967. At Bonnie Doon Composite, where he was assistant principal, they won two City Senior Football titles (1972 and 1973) with Dean as head coach of the Lancers. Later he was principal at Victoria and at M.E. Lazerte Composite High School where he coached his teams to four more City Senior Football championships.