In 1944, Leader was elected as the secretary-manager of the Pacific Coast Hockey League. Throughout the decade, Leader worked to manage and promote amateur hockey on the west coast, also taking on an administrative role with the Amateur Hockey Association of the United States. In 1952, the Pacific Coast Hockey League became part of the now defunct professional Western Hockey League and Leader became the league president. He served in this capacity until 1969, and was elected to the Hockey Hall of Fame in the same year.