Kurt Lewin, an important German-American psychologist of the early 20th century, referred to three basic principles when evaluating consulting, training, and coaching:
Principle 1. It's hard to stand on one leg. Organizations needs both employee performance and employee satisfaction.
The performance goals of the organization and the improvement of the quality of work for employees are intertwined. The aim is thus to increase the effectiveness of companies while optimizing employees' opportunities to shape their own lives.
Principle 2. Decisions are transparent. Everyone is involved.
Both organizational and personnel development are based on open information and active participation of all those involved.