Even if there is a drop off, it isn’t likely to be enough to thwart the Bears season.
Look back to 2012 and you’ll find Seattle ranking in the top five in DVOA for five consecutive seasons, including two first-place finishes, despite having three different defensive coordinators. They led the league in scoring defense four straight years before finishing third in 2016.
Then there’s Denver, which went from fourth in 2014 to first in 2015 and 2016 with two different defensive coordinators.
You know what both of those defenses had in common with the 2018/19 Bears?