"The Chiefs lead the league in pass defense but rank just 27th in run defense DVOA. It sure seems like they've got a better run defense than that, right? Well, some of that is an issue of analyzing totals compared to efficiency. Because the Chiefs are 5-0, their opponents have been forced to give up on the run early in most games. Only New Orleans and Denver have faced fewer runs per game; of course, those are the other undefeated teams. Defensive DVOA looks at every play equally, rather than being an average of pass defense and run defense. The Chiefs have faced many more passes than runs, so that strong pass defense influences their total rating more than the few long runs they've given up." - Some other good tidbits in there as well. And, possibly coming later this week... - "Cian Fahey will surely be looking at this run/pass dichotemy in this week's Film Room column, where he will be looking at the scheme changes and talent upgrades that have contributed to Kansas City's huge defensive turnaround."