Just to clear up some things...

The longtime boss of the North Jersey mob was Ercoli "Eckley" DiMeo. During his tenure as boss, some of the men who were his capos were Johnny Boy Soprano, Junior Soprano, Jackie Aprile Sr, and Raymond Curto (I'm not sure who the captains of the Altieri and Barese crews were back then).

Johnny Boy died of cancer and his old crew was taken over by his son Tony Soprano.

DiMeo was sent to prison for life. Jackie Aprile Sr became the acting boss of the DiMeo Family. During Jackie's reign, his capos were Tony, Junior, Raymond Curto, Jimmy Altieri, and Larry Barese. DiMeo grew old and senile in prison, and Jackie was the REAL boss, even though he still held the "acting" title.

Jackie, as we all know, eventually died of intestinal cancer. Junior became boss, with Tony really pulling the strings. Junior got indicted by the FBI, and Tony became boss in name as well as fact.