Good article, but one small quibble. The Pats' pass D isn't 25th in DVOA despite playing bad QBs, it's 25th because they've played bad QBs. DVOA is adjusted to strength of competition, so there's no need for that disclaimer from Hill. It's redundant at best and misleading at worst.
The Pats' adjusted value is 21.2%, vs. a non-adjusted value of 16.7%. Lower values are better for defense, so the fact that their value has been adjusted upward is FO accounting for how they've faced weaker-than-average passing offenses. The non-adjusted value is good for 21st in the league, FWIW, so this adjustment drops them 4 spots.
