If you're painting with a log of shit, don't expect it to look like a masterpiece.
Campen is working with what he has. The question of firing Campen should include all of the following considerations before rash decisions are made:
a) Can we find someone who can perform better than Campen? In the short term? In the long term? At what price?
b) Can a new coach learn our philosophy, or have the authority to introduce a new philosophy, to our offensive line?
c) Are the players the reason for the mistakes or the fact that the coaching is subpar? Could we replace players instead of replace coaches?