So, if he was in an administration position in the gambino family, who will replace him?
He wasn't.
To clarify Tommy; he wasn't an administration member at the time of his death. He was an admin member previously.
MORGAN: Why didn't you fight him at the park if you wanted to? I'm not goin' now, I'm eatin' my snack. CHUCKIE: Morgan, Let's go. MORGAN: I'm serious Chuckie, I ain't goin'. WILL: So don't go.