About Mike McCormack (American football)
Michael Joseph McCormack Jr. was an American professional football player, coach, and executive in the National Football League (NFL). He played as an offensive tackle with the Cleveland Browns from 1954 through 1962 and served as head coach of the Philadelphia Eagles, Baltimore Colts, and Seattle Seahawks. He was elected to the Pro Football Hall of Fame in 1984. Three seasons and a 16–25–1 record later, he was dismissed on December 22, 1975, following a 4–10 last-place finish. Not one mistake, and his guy would never make a tackle.'" McCormack retired from playing in 1962 and began coaching with the first of four consecutive stints as an assistant in the annual College All-Star Game.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.