Ive rarely agree with your takes in the past but this one seems like the easiest thing to understand and yet our fanbase just can't wrap their heads around it.
We had no talent on the defensive line, the amount of giving up certain things and taking certain risks in our scheming this year was to cover up a pretty bad DL that lost its only legit D lineman two games in. It's hard to field a competent D when you don't have horses in the trenches.
Bottom line is if you want to see an improved defense you have to go out and buy the dudes.
Arnett will do his job well if we get him the horses, if we don't we'll be singing the same song and dance.
Lebby is the guy we just need to get a few more dudes on both lines. We don't have the talent to survive bad in game decisions that all coaches make.

