The heads of all executive agencies shall keep informed as to the latest practices in their particular field and shall inaugurate, with the approval of the mayor and managing director, such new practices as appear to be of benefit and service to the public.
(Sec. 2-2.2, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 2, Art. 2, § 2-2.2)