One hypothetical.....

One of the factions that would have benefitted from the Rizzutos being gone WAS THE STREET GANGS.

And what did we see? Montagna using them for pickups....


So they go from just street level drug dealers, to now actually knowing where the extortion payments go, WHO TO EXTORT AND WHAT COMPANIES.
Consider that Montagna doubled the tribute, likely cause he had to give the Gangs a piece. He certainly COULDNT guarantee a better coke price, not better than the Calabrians, or anyone from Rizzutos camp.

And it was the Frenchman who controlled the docks I think.

He probably had the Violis in his corner, so I think they play a major part in all this..... They might be the ones with the connections, not sure.......