No, for many managers the fact that the deadline is fixed means they can death march you for all the functionality they decide needs to be complete at that date.
The idea that adding additional process to manage your managers is laughable at best.
The idea that adding additional process to manage your managers is laughable at best.
So no, you cant manage your boss, you can inform them, maneuver them, help them, cajole them; but at the end of the day you cant get them to change their behavior if they truly don't want to(and they can just fire you for being too annoying.)