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Insider

Sensational KC D not sustainable

10/19/2013 - NFL Kansas City Chiefs
David Eulitt/Getty Images

While the offensive improvement with new coach Andy Reid and quarterback Alex Smith is getting a healthy share of the accolades for the Chiefs' surprising 2013 turnaround, the real headline lies on the other side of the ball. The 2013 Chiefs defense is off to a blistering start. So good, in fact, that warning sirens should be blaring in every corner of Arrowhead Stadium.

Defenses that have dominated in similar ways to the Chiefs have a bad history of fading late in the season and in the playoffs -- with one notable exception.