Nowadays, Reid ranks among the oldest head coaches in the league, but that clearly hasn't made a difference for the Chiefs, who wrapped up a 15-2 regular season with the AFC's No.

Kansas City #Chiefs head coach Andy Reid describes his strategy against the Buffalo #Bills: ‘Look at the tape’ | @EdEastonJr

Spagnuolo’s first head coaching stint came with the St. Louis Rams from 2009 to ‘11. He also briefly served as the New York Giants’ interim head coach in 2017. The 65-year-old owns a sterling record in Kansas City, having won three Super Bowls and helped the Chiefs finish in the top-10 in scoring defense in five of his six seasons.