Bill Belichick on cusp of coaching in his 800th game

From his first year as a Colts assistant in 1975 to his dynasty in New England, Belichick has seen it all during his 47 years on NFL sidelines.
https://www.espn.com/blog/new-england-patriots/post/_/id/4824460/new-england-patriots-bill-belichick-on-cusp-of-coaching-in-his-800th-game?utm_source=dlvr.it&utm_medium=blogger