I think Del Balso was just a lieutenant or a high ranking soldier. Vito's underboss could have likely been Joe Di Maulo, Francesco Arcadi or Agostino [BadWord]. It was presumed that Agostino [BadWord] acted as boss when Vito was sent to prison.
Moreno Gallo and Tony Mucci likely could have been lieutenants.
"It was between the brothers Kay -- I had nothing to do with it."
