The only way to drain the Saudi swamp is to stop subsidizing radical Wahhabi clerics with oil money, and to imprison or kill the most vocal and powerful ones. Without the influence of the clerics, Saudi Arabia could become a semi-normal country like Jordan under King Adbullah.
Mohammed bin Salman has the opportunity to become an Arab version of Ataturk, something which would have been unthinkable over the past three administrations.