The Director of the Office of Administrative and Research Services shall conduct research in administrative management for the improvement of the organization, policies and practices of all appointed offices, departments and other agencies of City government, including, without limitation, the Proprietary Departments, for the purpose of evaluating programs and developing performance measures concerning the duties of the various positions, the methods and the standards of efficiency. The Director of the Office of Administrative and Research Services shall recommend to the Mayor, Council and the respective departments and agencies those changes that will promote economy and efficiency in the conduct of City government.