We said back in June that something at Viacom would shortly give, and it has, with CEO Philippe Dauman accepting an irresistible offer to step down as CEO, opening the door to someone taking the top job at one of the most powerful content businesses in the world. An endorsement by Viacom to accept the rising tide of OTT content delivery would represent the final recalcitrant traditionalist being swept aside and set the tone for a new content world, going all guns blazing for OTT dominance. Most coverage of this news focused on just how much money Dauman had made by digging his heels in, and we would all love to be offered $72 million just to leave our jobs,…