Like m2w said,there is a boss of bosses according to police, so they are all under one boss/or multiple people who are on top. Ndrina boss answer to someone higher than he is.
1)ndrangheta isn't an exstension of Cosa Nostra; 2)the had no boss of the bosses but a chamber of control for avoid the feuds.
I said some believe they are extension of Sicilian Mafia, even Buscetta made that claims.
Like furio said, no boss of bosses.
Go look up for Pasquale Condello aka Il Supremo(The supreme one),police believe he was on top of 'Ndrangheta,boss of bosses.
