Napolitano rose to prominence in 1973 as a soldier for Michael Sabella and was promoted to capo, replacing his mentor after the gangland execution of the powerful rival capo Carmine "The Cigar" Galante. Sabella was demoted and Napolitano took over the crew. He became a trusted confidant of the imprisoned mobster Phillip "Rusty" Rastelli who took over leadership permanently again. But when Rastelli took over, it caused the Bonannos to split into two factions, one loyal to Rastelli, the other attempting to overthrow him in favor of the Sicilian faction, led by Alphonse "Sonny Red" Indelicato.