The defense is not as bad as it looks when we are being blown out. At times this year the defense has even looked good.
That's why our defensive rating jumped significantly when we were competitive with point book.
We are dealing with humans, and when they go into a game feeling like they have no chance of winning they will not play with max effort on defense. You can be pissed at them, but it is just human nature. If you are in a job for a failing company and you know you will be getting a job elsewhere soon, 90% of peoples effort drops. This is just the way it is.
I am not worried about the defense, that will be acceptable if the offense becomes acceptable - just looking back to previous games this season proves it.