 Complete the following phrase:  At the 19th Conference, the first since 1941, Mikhail Gorbachev called for the establishment of Commissions of the Central Committee to allow Central Committee members more leeway in actual policy implementation. On 30 September 1988, a Central Committee Resolution established six Commissions, all of which were led either by Politburo members or Secretaries. The Commission on International Affairs was led by Alexander Yakovlev; Yegor Ligachev led the Commission on Agriculture; Georgy Razumovsky led the Commission on Party Building and Personnel; Vadim Medvedev became head of the Commission on Ideology; the Commission of Socio-economic Questions was led by Nikolay Slyunkov; and Viktor Chebrikov became the head of the Commission on Legal Affairs. The establishment of these commissions was explained in different ways, but Gorbachev later claimed that they were established to end the power struggle between Yakovlev and Ligachev on cultural and ideological matters, without forcing Ligachev out of politics. Ligachev, on the other hand, claimed that the commissions were established to weaken the prestige and power of the Secretariat. The number of meetings held by the Secretariat, following the establishments of the commissions, decreased drastically, before the body was revitalised following the 