An Interesting way to look at it and quite refreshing?
Jerry has all the leverage if he's willing to use it.
If Jerry signals that the Cowboys won't push Dak's cap hit into future years, Dak will be looking at a very down year going into his last big contract, while the Cowboys will be looking at a clean cap for the rebuild and new QB.
Currently looks like we're not signing Tyron and Biadasz. Does Dak wanna put a year of tape out there with backups, rookies, or veteran castoffs protecting him at the key oline positions?
Negotiations are generally a game of chicken. Who will swerve first? "Dak has all the leverage" assumes the Cowboys want him back. What if they don't?
It's the side that can most live with "No Deal" that has the leverage.