clearly the Castellammerese were more closely knit, a kind of "closed field" to anyone not from the immediate area

the other groups were more of a big tent, seemingly

would the Corleonesi have been just as closed off to "outsiders" as the Castellammerese had the Morello gang leaders not been imprisoned for so long?

perhaps the Corleonesi had to band together with others, and defer to Masseria, out of weakness?

did Masseria have a Trapani power-block supporting him? or were his supporters and allies simply less attached to, less conscious of, their roots, i.e., somehow more "American" than other early groups?