Getty The Chiefs' defense is expected to thrive once again under DC Steve Spagnuolo in 2025. Throughout the Kansas City Chiefs ‘ establishment of a dynasty, their offense has received plenty of praise. That’s more than justified, as the trio of Andy Reid, Patrick Mahomes and Travis Kelce is a generational group. The defense shouldn’t be overlooked, though. In recent years, it’s been cemented as a very reliable unit. It’s no coincidence that the Chiefs keep winning despite the offense taking a