People really overrate the Jerry Jones puppet shit. Stephen and Will McClay have way more control over the team these days and routinely, and correctly, overrule Jerry. If Urban Meyer wants to draft a guy or sign a guy, Jerry isn’t going to get in the way. And Jerry isn’t going to do something like rush out and sign Antonio Brown and not consult anyone. That’s just not how it happens anymore.
The problem is that after Parcells, he hired guys who aren’t good enough to clash with what he wants anyways. Wade Phillips was happy to be getting paid and Jason Garrett is a painfully average coach who brings nothing original to the table.
The major barrier for success a coach for the Cowboys will face is whether or not they can get the team to respect and fear them. No one was worried Jason Garrett would be cutting someone for underperforming, because they knew Jerry wouldn’t pull the trigger on that. But no one doubted Jimmy Johnson would cut them, and no one, aside from maybe TO, doubted Parcells would either. Urban Meyer seems like he has the right amount of asshole in him to be able to inspire that.