 Complete the following phrase:  According to Jerry F. Hough the Politburo in the post-Lenin period, played the role of the Soviet cabinet, and the Central Committee as the parliament to which it was responsible. Under Stalin the Politburo did not meet often as a collective unit, but was still an important body  many of Stalins closet protégés were members. Membership in the Politburo gradually increased in the era from Lenin until Brezhnev, partly because of Stalins centralisation of power in the Politburo. The Politburo was renamed in 1952 to the Presidium, and kept that name until 1966. According to Brezhnev, the Politburo met at least once a week, usually on Thursdays. A normal session would last between three and six hours. In between the 