Compensation and standards of employees of local governmental units receiving state funds. In any local governmental unit receiving State funds for public aid purposes under Article VI, the number and compensation rates and standards of competence, performance, and tenure of all employees or other persons paid from public aid funds, including the compensation rates of the persons serving as or designated as Supervisor of General Assistance if such person is paid in whole or in part from public aid funds, shall be subject to review and approval of the Illinois Department.