How the Chiefs Defense Changed Their Fortunes

Looking at the personnel changes that turned Steve Spagnuolo's defensive unit into a strength at the bye

Through the first five weeks of the 2021 season, the Kansas City Chiefs defense was averaging 32.6 points and 437.5 yards given up per game. They were amongst the league’s worst in points per drive, red zone conversion percentage, and third down conversion percentage — the holy trinity of bad defensive play. The Chiefs defense had the league’s worst EPA…