Governance of the health system: moving ahead. Sameen SiddiqiRegional Adviser, Health Policy and Planning, WHO EMRORegional Capacity Building Workshop on Health Systems Development June 8-12, 2008. Stewardship as a function of the health system: WHR 2000. WHR 2000. Stewardship: Basic tasks formulating health policy ? defining the vision and direction; exerting influence ? approaches to regulation; and collecting and using intelligence.