So far in the first two preseason games, it looks like the Bills defense is playing very well. Extremely stout against the run, not giving up much yardage or points. I believe I read somewhere that the first 6 drives by both Indianapolis and the Giants resulted in 46 total yards (each). They're allowing very few first downs, and very low third down conversion percentage.
They also are passing the eyeball test, at least by these two eyes.
That appears to be the case despite all of the defensive starters being replaced by backups. They've had unexpectedly good productivity by several backup defensive linemen and linebackers, not to mention some of the backup CBs and safeties.
The question is: is this is a true improvement, or just a byproduct of the preseason?
Discuss.