The position of Secretary of Veterans and Defense Affairs (the Secretary) is created. The Secretary shall be responsible to the Governor for the following agencies: Department of Military Affairs, Department of Veterans Services, Veterans Services Foundation, and Virginia Military Advisory Council. The Governor may, by executive order, assign any other state executive agency to the Secretary, or reassign any agency listed above to another Secretary. The Secretary shall by reason of professional background have knowledge of veterans affairs and military affairs, in addition to familiarity with the structure and operations of the federal government and of the Commonwealth.