The Marxist-Leninist solution to overcoming the (constitutive) “conservativeness” of the leadership: more leadership!
“The working class needs a party to change society. If there is no revolutionary party, capable of giving a conscious leadership to the revolutionary energy of the class, this energy can be wasted, in the same way that steam is lost if there is no machine that can use its power. On the other hand, each party has its conservative side. In fact, sometimes revolutionaries can be the most conservative of people. This conservatism develops as a consequence of years of routinist work, which is absolutely necessary, but can lead to certain habits and traditions that, in a revolutionary situation, can act like a brake, if they are not overcome by the leadership.
At the decisive moment, when the situation demands a sharp change in the orientation of the party, from routine work to the seizing of power, the old habits can come into conflict with the needs of the new situation. It is precisely in such a context that the role of the leadership is vital.” – (Alan Woods)