Provide in service education programs, use accurate nursing audit, formulate philosophy and vision of the institution -a refers to being a change agent. b is a role of a patient advocate. c is a case manager while d basically summarized functions of a nurse manager. if you havent read lydia venzons book : nursing management towards quality care, i suggest reading it in advance for your management subjects in the graduate school. formulating philosophy and vision is in planning. nursing audit is in controlling, in service education programs are included in directing. these are the processes of nursing management, i just forgot to add organizing which includes formulating an organizational structure and plans, staffing and developing qualifications and job descriptions.