chief executive officer (CEO)
A chief executive officer (CEO) is the highest-ranking executive in a company, whose primary responsibilities include making major corporate decisions, managing the overall operations and resources of a company, acting as the main point of communication between the board of directors (the board) and corporate
Chief of Staff (Executive Assistant / COO)
A broad thinker who can handle the details. Assertive and confident while being open-minded and humble. Proactive but comfortable reacting to fires. Comfortable with senior executives and board members, while also approachable and fluent with entry-level staff.
In general, a chief of staff provides a buffer between a chief executive and that executive’s direct-reporting team. The chief of staff generally works behind the scenes to solve problems, mediate disputes, and deal with issues before they are brought to the chief executive. Often chiefs of staff act as a confidante and advisor to the chief executive, acting as a sounding board for ideas. Ultimately the actual duties depend on the position and the people involved.