Coach Sean McDermott's defense is predicated on its front four creating pressure. Over the past month, the Buffalo Bills have had a difficult time doing that.
In Week 10's loss to the New Orleans Saints, Buffalo registered just three quarterback pressures (one hit, two hurries) 26 Drew Brees drop-backs (11.5 percent of the time). As you can probably imagine, that's not good.
But the lack of pass-rush against New Orleans isn't an isolated issue for the Bills. Over the past month, the defense has struggled to generate pressure on opposing quarterbacks.
Here's how Buffalo's pass-rush has fared in its last four outings:
The Bills have created 38 quarterback pressures on the most recent 143 drop-backs they've faced. That equates to a pressure rate of 26.5 percent.
Here's how Buffalo's defense performed in the pass-rush department in the first five games of the season:
Over that span, the Bills registered 92 quarterback pressures on 208 drop-backs. That pressure rate is 44.2 percent, nearly double what Buffalo's defense has created in its most four recent contests.
Coming into their matchup with Buffalo, New Orleans' offensive line ranked third in the league in PFF's Pass-Blocking Efficiency, a metric that measures how often a quarterback pressure is allowed relative to pass-blocking snaps.
After their game against the Bills, the Saints offensive line moved to No. 1 in the NFL.
Buffalo's Week 11 opponent, the Los Angeles Chargers, currently have an offensive line with the No. 22 Pass-Blocking Efficiency.