I don't know what the "czar" role accomplishes.
This isn't a game anymore for football elders like Polian. I am wary of asking for guidance from guys who had success in an NFL that no longer exists. You need a sharp person who understands the complexity of football in this era with free agency, salary cap, the intricacies of the CBA, need to win immediately,and the changing strategies on the field.
The GM game is increasingly a younger man's game. E.g. Howie Roseman, Dave Caldwell, Whaley, Ryan Pace, John Schneider.