Bills have a better defense than we realize. This modern NFL, the good defenses are going to generate sacks, turnovers, and stiff up at the goal line. No one is a shut down dominant defense anymore. The rules, lack of contact in practice, and new offenses have opened things up for good.
I do feel we need to get better stopping the run. What has killed us all year is 3rd downs, poor tackling/ pursuit angles, and letting mobile QBs escape the pocket.
Still there is this fantasy out there that the top teams have balenced units, when its just not the case.