User blog comment:Roronoa Senshi/HOLY SHIT!!!!!!!!!!!! !/@comment-2031609-20111215191156/@comment-3387274-20111216073219

indeed. That was Why he get's the job. If it had been Aokiji, Luffy would never have been able to become an enemy of the world governent properly, and the most interesting point of the series would have swapped to Aokiji trying to lead the marines down the right route without going too far and bringing down the Straw hat crew (thus breaking his promise to Saul). This way, we get the far simpler matter of the guy at the top wanting to kill every pirate, and Luffy wanting to kill him.