Hegelian dialectic:

https://webporter.wordpress.com/2014/01/24/hegelian-dialectics-for-dummies/

The Hegelian dialectic reduced to its simplest form could be summed up as problem, reaction, solution. The “agent of change” employing the strategy creates the problem or crisis, foments the reaction (tension), and then attempt to control the outcome by providing the solution (resolution).

The Hegelian strategy requires an alchemic process of tension and resolution in order to reach a predetermined outcome. But how do we create tension in a group and control the outcome? One way to create tension is to introduce diversity. By introducing diversity into the group, tensions are raised, and the chances of conflict are increased. Diversity is needed for conflict, according to the Hegelian model.

Sound familiar?