Lyndon Johnson actually said...

The head of each department, agency, and establishment shall, with respect to each installation in the United States under his jurisdiction,...

The Commission shall have an Executive Director, who shall be designated by the President and shall receive such compensation as may be here...

The heads of the departments, agencies, and establishments of the Executive Branch of the Government shall provide leadership in the nationw...

The Commission shall consider the past, present and prospective functioning of selective service