Soviet leaders argued that one-party rule was necessary because it ensured that 'capitalist exploitation' would not return to the Soviet Union and that the principles of Democratic Centralism would represent the people's will. Debate over the future of the economy provided the background for Soviet leaders to take more power in the years after Lenin's death in 1924. Initially, Lenin was to be replaced by a "troika" composed of Grigory Zinoviev of Ukraine, Lev Kamenev of Moscow, and Joseph Stalin of Georgia.