Which of the following is NOT considered a core function of management?

In the context of management functions, core functions typically include planning, organizing, staffing, directing, and controlling. These functions focus on the internal processes that directly affect how a company operates and achieves its goals.

Marketing, while essential to a business's success, is generally classified as a specialized business function rather than a core function of management. It primarily deals with promoting and selling products or services, which is important for generating revenue but does not represent the central activities involved in managing an organization. Planning, staffing, and controlling are all fundamental aspects that ensure that resources are allocated efficiently, the right people are in place, and that the organization's performance aligns with its strategic objectives.

Thus, identifying marketing as not being a core function of management highlights its distinction from the operational processes inherent to effective management.