IN the sicilian mafia you've got is like this:

On the head of the family: the capo famiglian (don, godfather, boss etc.)

You have capo mandati (capo's caporegimes caporegimas crew bossses captains luitanants etc)who rule over soldati (soldiers wiseguys buttons goodfellas etc)

Under the soldati you have the picciotti. There scum, who have the little things