Let's make this birthday one to remember.

84 years old (Born on August 20, 1940)

Happy Birthday, Coach McCartney! You've certainly scored big in life's end zone—transforming teams and teaching folks how to tackle anything that comes their way. From your gritty playing days at Michigan to turning Colorado into a national championship contender, you've always been MVP-level material.

Now just remember: age is merely the number of candles on your cake—not quite as intimidating as facing Nebraska's defense was back then! Wishing you endless laughs today surrounded by family, friends—and perhaps some friendly rivalry recollections. Happy birthday once again—you'll forever be our legendary play-caller with an unmatched winning spirit!