I'm done with Kubiak and Schaub. They need to go

[Nconroe]

So, just wondering, since most of discussion has been about Schaub,

If Kubiak went but Schaub stayed, would Schaub improve suffeciently, say he had a Fox for his coach?

or even other way around, if Schaub left, would Kubiak get better - for instance if he had a Wilson or Luck as his new QB?