i've always looked at the outfit admin as BOSS,UB,STREET BOSS.
it has never been made clear that a position of consigliere was of much importance and if it existed the "consigliere/#3"could also be the leader of say grand avenue or one of the 4 street crews.
the leadership in chicago has always fulfilled dual roles.case in point is albert vena.he is the SB of the outfit and grand avenue capo/leader.
so d'amico could have held the role of consigliere i guess and also been the leader of elmwood park??
and my guess as to membership is probably around 25-30 core/senior members with an unknown amount of associates in each street crew.
as with all OC groups they don't advertise membership (aside from bikers i guess) those in the know and in chicago area would have a better idea.the outfit has never had a history of induction ceremonies to begin with so when exactly a guy moves from being associated to having the responsibility of a member is anyones guess.