In November 1966 the Ninth Party Congress was held in Sofia. During the deliberations changes were made within the Politburo whereby Zhivkov's former protégé, Grigorov, was dropped from membership without an explanation and Todor Pavlov, a theoretician of Marxism, and Tsola Dragoycheva, head of the National Council of the Fatherland Front, were added as full members. Boyan Bulgaranov and Ivan Mihailov, both older party members, were retained--a move that indicated the influence of older functionaries over young potential leaders. Economically, the congress supported principles of new management, tying political progress with economic advancement. Collectively the aforementioned congresses accomplished little. On the contrary the 1971 congress introduced considerable changes in the sociopolitical and socioeconomic patterns of growth--among them the drafting and adoption of a new constitution (see ch. 8). Tenth Party Congress Whatever political changes are visible in Bulgaria are the result of the Tenth Party Congress held in Sofia from April 20 to April 24, 1971. It was attended by 1,553 delegates representing roughly 700,000 party members, a ratio of about one delegate for every 450 members. Additionally, foreign representatives from eighty-nine countries were on hand. Leading the Soviet delegation were Brezhnev, general secretary of the Soviet party, and four other high-ranking officials. As is customary, Zhivkov opened the congress with his usual state-of-the-nation address, extolling Bulgarian-Soviet ties and stressing friendship between the two countries. Included in the agenda were the adoption of a new five-year economic plan; discussion and adoption of the new party program; discussion and approval of the new constitution; the election of party members to the Central Committee, Politburo, and Secretariat; and a change in party statutes calling for a congress every five years instead of four. The central theme of the party congress revolved around the concern or "care for man." To this end resolutions were passed during the deliberations purportedly giving "everything for the sake of man; everything for the good of man." A separate report on the subject also emphasized the need for improving the economic plight of the people. By the time the resolutions and directives were being implemented, however, noticeable variations in interpretation and emphasis had taken place. For example, the draft directives for the Sixth Five-Year Plan showed projection of industrial production that went up by 60 percent, whereas production of consumer goods was projected to increase by only 50 percent.