Marcello & Lombardo were both fully initiated made members of the Outfit. The Outfit does not discriminate against partial Italians, and obviously the mixing of Italian & Irish blood has been prevalent for many many years, especially for political/financial reasons (Calabrese, Sr. marrying into the Hanley family, etc.)

Jimmy Marcello's past is very shaded & confusing. His father's cause of death remains unknown to this day. Regardless, his father was never a high ranking official in the mob. Jimmy Light busted his ass to get to the top, he was Black Sam Carlisi's driver/personal assistant for many years before being made.

Concerning Lombo, he was made into the mob during the late 60's/early 70's. Not sure on who sponsored him.

Large Mike Sarno is not a rival of the Marcello's, he is a member of the Cicero street crew like the Marcello brothers are/were. He has not, however, ever been boss of that particular crew, contrary to the bogus information that the Feds came up with. Jimmy 'Icepick' Inendino is the main power down in Cicero at the moment, with Sarno second in command.

Concerning Johnny DiFronzo, the notion that he bought the Feds is the one that makes the most sense. The guy was never even looked at during Family Secrets, rides around town all day eating & drinking, and is said to be worth well over $100 million, not including assets/security.