Complex sentence: Lutovinov favored struggling for collegiality and against one-man management in industry, but put less priority than Shlyapnikov did on realizing workers control (through trade unions) of industry, presuming that the workers could not control industry until certain preconditions were met.
Split into simpler sentences: Lutovinov favored struggling for collegiality and against one-man management in industry, but put less priority than Shliapnikov did on realizing workers control (through trade unions) of industry. He thought that workers could not control industry until certain preconditions were met.