During his tenure as head coach at Army, which coincided with the height of the Vietnam War, his teams beat Navy five times. Following the 1966 season, the Eddie Robinson Coach of the Year award was bestowed upon Cahill. Following a 51–0 defeat at the hands of Navy to conclude the 1973 season, Cahill was dismissed as head coach. Cahill died on October 29, 1992, in Schenectady after a heart attack.[1]