As I told someone yesterday, this is where the 'ownership is the reason this franchise has sucked for 30 years' comes into play. I don't trust them to make the right decision, I see them as highlighting the growth of the team and not wanting to replace head coaches every 2 years or some crap.
That said, if Warren really has the keys to the kingdom maybe he uses his authority to force a change...not sure he'd override Poles though if he decided he wanted to keep Eberflus,