Why is Human Resource Management considered a vital aspect of the total management process?

Human Resource Management (HRM) is the term used to describe formal systems devised for the management of people within an organization. These human resources responsibilities are generally divided into three major areas of management: staffing, employee compensation, and defining/designing work. Essentially, the purpose of HRM is to maximize the productivity of an organization by optimizing the effectiveness of its employees. This mandate is unlikely to change in any fundamental way, despite the ever-increasing pace of change in the business world. As Edward L. Gubman observed in the Journal of Business Strategy, "the basic mission of human resources will always be to acquire, develop, and retain talent; align the workforce with the business; and be an excellent contributor to the business. Those three challenges will never change."