In order to prevent discussions among the many family members, a policy was established in early 1972 that no Porsche family member is allowed to be involved in the management of the company. Even company founder Ferry Porsche, Piëch's uncle, only held a seat on the supervisory board of Porsche after the company's legal form was changed from a limited partnership to a private legal company. This made Piëch move to Audi after the foundation of his engineering bureau.