Cowboys improve.
Cowboys make the playoffs.
Cowboys win a playoff game.
Wade returns with more authority and quite a bit of free money after this year's cuts.
Why would Jerry make these moves, have Wade get the team on the right path, win a playoff game, and then fire him and bring in a new staff?
It doesn't matter what name coaches are out there...if Wade and the Cowboys underperform or fade in December again, he's gone...but if the Cowboys improve, finish strong, win a playoff game and appear on the right path to challenging for a title, then why would any sane person fire him for another coach who just happens to have a bigger name?