The highest order of needs is for self-fulfillment, including recognition of one's full potential, areas for self-improvement, and the opportunity for creativity. This differs from the rational system, which assumes that people prefer routine and security to creativity. Because of structural changes in the social order, the workplace is more fluid and adaptive according to Mayo. As a result, individual employees have lost their sense of stability and security, which can be provided by being a member of a group. However, if teams continuously change within jobs, then employees feel anxious, empty, and irrational and become harder to work with. The innate desire for lasting human association and management “is not related to single workers, but always to working groups.” In groups, employees will self-manage and form relevant customs, duties, and traditions.