In two articles of 1921, this concept was developed so deeply that they assert that the vanguard party is not a simple part of the proletarian class but already a structure beyond the classes, already fitted to the classless society and designed in accordance with its future duties.
In the first years of the PCI, there was no official leader, but the accepted leader, first of the Faction and then of the party, was Amadeo Bordiga of the Left current.