Underboss (Italian: sottocapo) is a position within the leadership structure of certain organized crime groups, particularly in Sicilian and Italian-American Mafia crime families.
However the position of street boss has somewhat challenged the rank of underboss in the modern era.
The position was installed within the Genovese crime family since at least the mid-1960s.
It has also been used in the Detroit crime family and the Chicago Outfit.
However he makes his illegal earnings, it is a significant enough amount to make his position one of envy, especially when prestige and the possibility of additional advancement are weighed.