https://www.cbssports.com/college-football/news/college-football-coaching-tiers-2019-from-blue-bloods-and-fast-risers-to-uncertain-futures/
Link: Coach Rank by Tiers
https://www.cbssports.com/college-football/news/college-football-coaching-tiers-2019-from-blue-bloods-and-fast-risers-to-uncertain-futures/
Link: Coach Rank by Tiers