Media swarmed during the end of the Barnett era, but it was CU that put blood in the water with a series of disastrous PR blunders.
I personally believe a good AD is more important for success than any other position. A good AD can make a hiring mistake, but they don’t compound it and are willing to change. Mike Bohn was a terrible AD. Tharp wasn’t good either. Bill Marolt, however, was a badass.
On the flip side you've had guys like Saban transform the entire university and its image. I think there can be exceptions.