You are right JC. According to Gravano, Joe Piney briefed Gallo and other old timers. and would "control" him and that Gallo would be on their side. Also, after the killing of Castellano and Billotti, Gallo met with Gotti, Gravano, Ruggiero and Deccicco and informed them on Commission rules regarding an unsanctioned hit on a boss and how those responsible can never reveal their participation or they too would be killed.