The functional organizational structure groups employees according to broad business activities, resulting in departments such as finance, marketing and production. These departments might be further divided, depending on a company's size and needs. Departmental managers supervise a wide base of employees below them. These managers are in turn supervised by more-powerful managers, who answer to one powerful boss, perhaps a CEO, owner or president. The resulting hierarchy has a vertical thrust, is shaped like a triangle and features clear authority lines and departmental boundaries. This affords companies both benefits and disadvantages.