I find such behavior not only revolting, but completely unacceptable of somebody calling themself "doctor" without exception.
When a doctor or anyone else is in charge, they are responsible. That includes accepting blame and responsibility for the faults of those who work under them.
A doctor should never be blaming a provider who that same doctor signed off on as qualified and fit to practice under them.
They deserve to be sued for all they have and lose, including their license for such behavior.
Nobody forces a doctor to be a medical director. They accept the position, they accept the responsibility. Whether they are paid or not.