INTRODUCTIONManaging and leading are completely two different ways of organizing people. Leadership is an individual's ability to control, encourage and enable others to contribute to the effectiveness and success of the organizations of which they are a team member. On the other hand, management includes the direction and control of a group of several people or entities with the aim of coordinating and harmonizing the group in order to achieve an objective. Management is defined as the control process that ensures that performance gaps are marked and corrected through feedback. Management processes are almost the closest to security and absence of risk. The contribution of leadership is to encourage, motivate and energize people by meeting the essential human needs of achievement, self-esteem, recognition, a sense of belonging, control over another life and ability to live up to his ideals. The best leaders encourage people. by building the appropriate vision for the specific group, supporting the employee with appropriate training, feedback, role modeling and recognizing and rewarding success. Leadership is also about defining people while managing, controlling and creating results, while management is the one with fewer skills than that of leadership. (Yukl, “no one has proposed that leadership and management are equivalent, but the degree of overlap is a point of deep disagreement” 2006, p5). Management functions can provide leadership and leadership actions can contribute to management, but diverse leaders do not manage and diverse managers do not direct. That's Bernard Bass' assessment in his 1,200-page tome, "Bass and Stogdill's Handbook of Leadership" (page 383). Warren...... middle of paper ...... However, as a result, GE became a hugely growing company under his leadership and his team was always enthusiastic to follow his lead, because those under his leadership knew he always kept his word. CONCLUSION The conclusion of the report is that management and leadership are both different concepts because the manager uses a reserved concept, rational and formal method while on the other hand the leader uses his passion and arouses emotions. It is clear from the discussions above that there is a strong demand for leadership, even in areas where the demand is either verbal or primarily managerial in nature. Managers at all levels play an important role in developing the self-assessment project through known business excellence and performance assessment models and have a strong impact on the company's journey towards Excellency..