Prof. Dr. phil. Arist von Schlippe, graduate psychologist, psychological psychotherapist, family therapist and family psychologist, holds the chair "Management and Dynamics of Family Businesses" at the Witten Institute for Family Businesses at the University of Witten / Herdecke. He is a teaching therapist for systemic therapy, coach and supervisor (SG). Professor Dr rer. soc. Jochen Schweitzer, graduate psychologist, heads the Medical Organisational Psychology section at the Center for Psychosocial Medicine at Heidelberg University. He is a teaching supervisor and teaching therapist for systemic therapy at the Helm Stierlin Institute and founder of the Heidelberg Conference for "r Systemic research.