Steve Spagnuolo becomes the first NFL coordinator to win four Super Bowls, leading the Kansas City Chiefs to victory. His first championship came with the 2007 Giants, who upset the Patriots. He has since won three Super Bowls with the Chiefs. Spagnuolo's defense played a key role in the win, forcing turnovers and limiting the 49ers' offense. The Chiefs had a dominant defense throughout the season, allowing the second-fewest yards and points per game.

Spagnuolo's legacy is centered around mentoring and coaching players, and he hopes to have made a positive impact in the football world.