I'm a CEO of a cadre of subordinate executives, each of which has specific functional responsibilities. These direct reporting relationships most often include a chief financial officer (CFO), chief operating officer (COO), chief marketing officer (CMO), chief information officer (CIO), and a director of human resources.
However, depending on the industry in which the company operates and/or the organizational structure the company has employed, various other functional areas may be highlighted through the CEO's direct span of control. Some of these less common monikers include the following: chief business development officer, chief development officer, chief knowledge officer, chief learning officer, chief strategy officer, chief risk officer, chief innovation process officer, chief credit officer, and chief creative officer.

