There are numerous ways to rank an offense and a defense in the NFL. Yards, points, 3rd down conversions, the Aikman efficiency ratings, just to name a few. But for the purposes of this exercise, we're going to use Football Outsiders' DVOA (Defense-adjusted Value Over Average).
To get an explanation of DVOA you can click here, but I prefer the ultra short version.
DVOA measures a team's efficiency by comparing success on every single play to a league average based on situation and opponent.
We'll use the Weighted rankings of DVOA for both offense and defense.
Last year the Chicago Bears' Mel Tucker coordinated defense ranked 32nd according to Football Outsiders. Meaning Vic Fangio has no where to go but up. The potential issue could be that he doesn't have the specific talent on the roster to run the 3-4 defense his way.
On offense, play caller Marc Trestman had the Bears ranked 19th in weighted DVOA in 2014. This year the Bears are implementing a new offense and they have a very tough schedule out of the gate.
My question to you guys today is; Will the Bears show a better overall DVOA gain on offense or on defense?