A definition: Organizational development is a top-down management-supported, long-range effort to improve an organization's problem-solving and renewal processes, particularly through a more effective and collaborative diagnosis and management of organization culture, with special emphasis on formal workteam, temporary team, and intergroup culture, with the assistance of a consultant - facilitator and the use of the theory and technology of applied behavioral science, including action research. Kurt Lewin was a founder of the Organizational Development (OD) movement. He described organizations as existing in a state of "quasi-stationary equilibrium", which means they tend to be stable and resist change. Lewin felt the OD specialists task was to (1) unfreeze the organization, (2) change it, and then (3) refreeze it in the new configuration. He utilized a method called "action research", which is much like scientific research, except that adjustments are made in the research strategy as feedback is obtained.