legislation introduced in 1950, as well as through opposition to Stalinism and inter-war Yugoslav unitarism. The approach led to a period of ideological revisionism in which established doctrines could be questioned. Reform and conflict with Đilas Even though Soviet and Cominform propaganda drew attention to inequalities in the economic development of various parts of Yugoslavia, alleging restoration of capitalism, and national oppression of the underdeveloped nations, the clash between strict centralisation and decentralisation appeared as a conflict between political principle and economic priorities. In 1950, Yugoslav authorities sought to combat unsustainable labour practices and improve production efficiency through introduction of workers' councils and the system which later became known as "socialist self-management". However, the 1946 Yugoslav constitution followed the model of the Soviet federation in which the federal parliament legislates laws applicable to the federal units and has the power to overrule the units' legislation. In 1952, Kardelj drafted constitutional amendments to reflect the reality of the reforms of 1950–1951. This led to codification of the reforms as 1953 Yugoslav constitutional amendments seeking to reflect the economic power of each constituent republic, while ensuring equal representation of each federal unit in the assembly to counterbalance this. The KPJ proclaimed shift from party monopolising power to the ideological leader of the society, decentralised its structure, and rebranded itself (and correspondingly its republican organisations) as the League of Communists of Yugoslavia (, SKJ) at its sixth congress held in Zagreb in 1952. The name was inspired by the 1847–1852 Communist League. The constitutional amendments, adopted in January 1953, were only the second step in a series of five constitutional reforms reflecting the social development of Communist-ruled Yugoslavia, but the principles introduced in 1953 were retained in all subsequent Yugoslav constitutions. After the Yugoslav rapprochement with the USSR, Đilas feared Yugoslavia would switch to full control of the society by the central government. He thought that was possible due to influence of Ranković–the Đilas's primary competitor as a potential successor to Tito. Đilas wrote a series of articles for Borba criticising bureaucratism and Communist exclusive claim to power. He took the criticism further in a compilation of essays, accusing the KPJ of elitism and enjoying privileges. In response, Đilas was removed from the KPJ central committee in January 1954 and soon he left the KPJ. In a subsequent The New York Times interview, he called for a multi-party system in Yugoslavia – and