The Buffalo Bills will be going into Week 4 as the second-best pass defense in the league, only allowing 142.3 passing yards per game, with a 2-7 TD-INT ratio. The Bills faced the New York Jets in Week 1, whose passing offense is ranked dead last in yards and passer rating.
The Bills would face the Raiders in Week 2, facing a dangerous receiver in Davante Adams, who's done some damage early in the game, but was out for the remainder of the game with a concussion.
In Week 3, the Bills faced an offense with Terry McLaurin and Jahan Dotson, who received a decent amount of targets but had nothing to work with due to the Bills' immense pressure that caused the Commanders to turnover the ball five times.
So overall, fans can argue that the Bills defense hasn't faced a true passing offensive threat yet. In this upcoming game against the Dolphins, the Bills will test if their defense is as legit as they are statistically, as the Dolphins are the number one total offense in the NFL right now.