Warmath's tenure crested after the 1967 Big Ten title season. Following a 6-4 record in 1968, he posted losing records in his final three years. Following the 1971 season, Cal Stoll was hired as coach of the Gophers and Warmath was made an assistant to the athletic director. Warmath stayed in that role until 1978 when he took a job with the Minnesota Vikings as an assistant coach, a position he held for two seasons before becoming a regional scout for the team.