Without defensive coordinator Steve Spagnuolo, we might not be calling it a dynasty at all. The Chiefs leaned on their defense during their run to another Lombardi Trophy last season, and it was ...

Considering his resume compared to others, Steve Spagnuolo is without a doubt the best defensive mind of the 21st century. This article first appeared on Kansas City Chiefs on SI and was ...

As the linebacker with the green dot on his helmet, Nick Bolton gets the play calls from defensive coordinator Steve Spagnuolo transmitted in his ear and relays them to his teammates. Bolton loves ...