Good points, yes. Respect, yes, of course. But Campbell needs to let go of some of the details. He needs to hire the right people, and give them a bit more control. He still controls the offense, perhaps too much. He gives Manning his marching orders. So Campbell is to blame here.
For the rest of the year, let Manning let loose a little more. Let him have more, not less control. Just a thought. If we still see the same tendancies, the predictability, then let Manning go after this year.
Getting a better O-line means changing the OL coach. It hasn't been a strong point in 6 years and it HAS to be.
Get a Special Teams coach.
Edit: I may be way off on thinking Manning needs more, not less control. I just think a lot of the Offensive structure and design is due to Campbell. He gets the credit when it goes well. He needs to make some changes when it doesn't.