For an association, the General Assembly controls the organization. They elect a Board of Directors, which must have the structure determined in the statutes and generally includes a president, secretary, a treasurer and members.  Conversely a foundation’s Board of Trustees has all administrative and governance powers. It’s composed of people, natural or legal, who were initially designated by the founder(s). Any renewal of the Board must follow the rules established by the founder(s) in the statutes.