Dissolution of the Soviet Union Central Committee Secretariat. In the fall of 1985, Gorbachev continued to bring younger and more energetic men into government. On September 27, 55-year-old Nikolai Ryzhkov replaced 79-year-old Nikolai Tikhonov as Chairman of the Council of Ministers, effectively the Soviet prime minister, and on October 14, Nikolai Talyzin replaced Nikolai Baibakov as chairman of the State Planning Committee (GOSPLAN). At the next Central Committee meeting on October 15, Tikhonov retired from the Politburo and Talyzin became a candidate. On December 23, 1985, Gorbachev appointed Yeltsin First Secretary of the Moscow Communist Party replacing Viktor Grishin. Gorbachev continued to press for greater
Premier of the Soviet Union USSR. However, Kosygin's prestige was weakened when he proposed the economic reform of 1965. Under the 1977 Soviet Constitution, the Premier of the Council of Ministers was the head of government of the USSR. The Premier was the chief of the executive branch and head of the Soviet government as a whole, the premiership was the most powerful governmental office in the USSR by influence and recognition until the establishment of the presidency during 1990. The Premier was responsible and accountable to the Supreme Soviet and during the period between sessions of the Supreme Soviet he was also accountable to