07 Dec 2010
Our look at why Josh McDaniels failed for ESPN Insider details the history of McDaniels's defensive tinkering, and how the free agent patches held up for one year before totally failing this time around. (You may recognize the concept from the FOA2010 essay.)
Eight weeks ago, the Vikings were undefeated and ranked No. 1 in DVOA. Now they're 6-6 and probably done. What went wrong?