What would it take to get Zac Taylor fired?

[Emphasis]

I'd be more willing to replace Lou at this point than Zac Taylor. Lou's defense has never been consistent, and they usually open games looking like some of the worst you will ever see.  

Zac's play calls are infuriating at times, but the defense is a glaring problem right now and it's tiring always hoping they get hot in the second half.