https://www.espn.com/nfl/story/_/id/29132028/dolphins-hall-fame-coach-don-shula-dies-90
Damn. The coaches that came out of his coaching tree are impressive in their own right. Chuck Noll and Howard Schnellenberger (who made Miami football relevant, and later created Florida Atlantic's football program) are the biggest names directly coaching under him. His extended tree includes Marty Schottenheimer, and Jim Mora Jr. That man left an indelible mark on football.