Sure, its possible that They may have done something but also remember that Gambino was responsible for Genovese going to prison. So its also possible he would've have been fine with the move, if it were to really take place.
Gambino was in no way responsible for Genovese going to prison. If Vito had any inkling at all that he was set up anyone and everyone involved would have been hit like Costello, Anastasia and Moretti were.
The word on the streets is Costello, Lucchesse, Gambino conspired to get Genovese in prison. Whether its true or not, doesn't matter because Genovese was removed from the situation. And by this time Genovese's "supposed Loyalist" like Tony Bender Strollo felt it more lucrative to go into business for himself. This is also the beginning of the whole "sleeper" powers truthfully running the Family in the shadows. There was so many powerhouses in that Family, I'm sure they (alot) were glad to see Vito go. Nobody wants to deal with a tyrant after have years of relative peaceful prosperity under Costello.
Very true the borgata had a good thing under Costello. He was loose handed with them and not demanding of monies because he was so wealthy in his own right. He left his underboss Moretti and other top capos mostly in charge. Everybody ate, and most everybody was happy.
Vito came back and through shear strength of character and raw fear mobilized and whipped his "Napolitano" faction into a cadre of supporters in order to move against Costello for the leadership..... the rest is history
