Marty was never an underboss. Its absurd. Not saying anything wrong about Marty, he just wasnt an underboss. He was a soldier. Michael was a captain i believe.
His older brother took over the jersey crew from Acceturro by going to meet Vic Amuso and pledging his allegiance to NYC. The notion that Amuso amd Casso were afraid of Ricciardi and the jersey crew is laughable. Casso had more hitters than he knew what to do with and none were afraid of jersey. I do t know how that rumor started.