Zac just isn't learning

[EasyPeasy]

What coaching upgrade would take this job and not carry his own risks of ineptitude to the organization? There are no top tier head coaches that want this job. It's currently much better than when Marvin left no doubt, but it is still Cincinnati and the Brown family, and any prospective coach would be thinking that they could conceivably make it to the super bowl and get fired the next year.