Until to the 90s, the families outside of New York had to seek permission to enter new blood in the family, and it was because of ban to made new members that many families have become extinct or are on the way to extinction.
Now with the Commission that hasn't met since 2000, and with the influence of the 5 families of both large families out Ny as Chicago are declined,

What would prevent a family, where there is less than 10 made men to take new members and rebuild the structure not necessarily be the Sicilian classic?

ie Boss, underboss, consigliere, capos, etc.

Make the example of the family of New Orleans or Cleveland, if there is an old made man who is chosen as the boss of the family can made new members and then later make contact with the old families.
Understanding that in its territory,can do what it wants.

Example (5 old made men,one is appointed as a boss,two as consigliere and underboss,the boss made ten made man,2 of the old made man as became capos with 5 made men each)

this is just to satisfy my curiosity don't make fun of me.