He knows how the NFL operates so he wouldn’t be thrown to the wolves. The best thing a coach can possess is the respect of his players and it’s been a long time since the Cowboys have had a coach do that. Also, they just missed the playoffs while a rookie QB in their own division is winning in the playoffs for the first time in 2 decades. A lot of times your head coach just needs to be the leader of the team while the assistants worry about the Xs and Os and the Cowboys don’t really have a leader right now.