Your perspective is plausible but I have to disagree. I think that it was Luciano's brainchild and Tommy Lucchesse was the snake in this scenario. You have to remember that, most of the younger Mafioso agreed that Maranzano would be the same as Masseria and wouldn't mind seeing him go. Especially if its already done! Bonanno was perfect replacement for the reasons I stated, add the backing of Stefano Magaddino at that time and Angelo Caruso's (and the guys he influenced) compliance, and there you go. If Bonanno had been involved, he probably would've (and should've) clipped Italiano and Rappa sooner rather then try to work with them until he couldn't anymore.