From 1959 to 1965, he coached at the high school (Charter Oak High School) and junior college level, he developed a reputation as an outstanding teacher and an offensive line guru. He was an assistant coach at
Utah from 1966 to 1969,
California from 1970 to 1971, and
San Diego State in 1972. During this time Hanifan joined the NFL in 1973, serving as offensive line coach for the
St. Louis Cardinals until 1978. He was recognized as the NFL's Assistant Coach of the Year in 1977. After one year with the
San Diego Chargers, Hanifan returned to the Cardinals and was their head coach from 1980 to 1985. Hanifan went 39–49–1 in his six seasons with the Cardinals, leading St. Louis to the 16-team playoff tournament during the strike-shortened 1982 season. The "Gridbirds" went 8–7–1 in 1983 with a victory over the eventual Super Bowl champion
Los Angeles Raiders, and in 1984, St. Louis was in position to win the
NFC East championship with a victory in the season finale against the
Washington Redskins. But Cardinal kicker
Neil O'Donoghue missed a game-winning field goal attempt, giving the Redskins a 29–27 victory and the division title, while St. Louis was left out of the playoffs despite a 9–7 record. In 1985, St. Louis started the year 3–1 but won only two of its final 12 games and finished at 5–11. Hanifan was fired that year by having the locks to his office changed during halftime of the final game of the year, against the Redskins. Hanifan is tied with
Jimmy Conzelman and
Ken Whisenhunt as the longest-serving head coaches in Cardinals history, with a mere six years of service. Conzelman coached the team on two separate occasions, while Hanifan's and Whisenhunt's tenures were consecutive. His 39 wins are the fourth-most in Cardinals history behind
Bruce Arians (50), Ken Whisenhunt (49) and
Don Coryell (42). Hanifan resumed his coaching career as an assistant coach with the Atlanta Falcons (1987–1989), and he served as the interim head coach when
Marion Campbell was fired. He spent seven seasons as offensive line coach for the Washington Redskins (1990–1996) and
St. Louis Rams (1997–2003) before retiring.
Head coaching record ==Commentator career==