This is what defensive regression looks like.
On the surface, it’s possible to make an argument that the Bears’ defense is still an elite unit. Their -5% DVOA has them as the 6th-best in the NFL. They have a sack percentage of 7.29% in 2019, compared to a sack percentage of 7.22% in 2018. That small dip represents a slip from 8th place to 12th place, but it still suggests that they are getting to the quarterback at a...