3. Dabo Swinney: 81.4% (2008-current) — Clemson
Following the midseason resignation of Tommy Bowden from the Clemson football program in 2008, Dabo Swinney became a hero for the Tigers. His initial 2009 season earned Clemson’s first-ever Atlantic division title — and it only got better from there. Beginning in 2011, Dabo helped the Tigers reach double-digit wins, and has kept the seasonal double-digit win streak alive since for the Tigers. He led his 2016 squad to a national championship, spearheaded by quarterback Deshaun Watson and his 2018 team to another national championship two years later with true freshman quarterback Trevor Lawrence. In doing this, Swinney became the first coach in Tiger history to lead the team to multiple national championships. By the end of his 2021 season, Swinney became the fourth-fastest coach in modern CFB history to reach 150 wins, and still continues to break records with the Clemson program.