As James H. Boren once said: “When you are in charge, meditate; when you're in trouble, delegate; when in doubt, mumble. Boren makes this statement because managers of companies and organizations at all levels are vital to the success of that entity. In this article, Boren's statement will be taken to the next level. When we evaluate the evolution of managers' actions while in office, we can conclude that managers are necessary for successful government performance. Even if managers' goal is to maximize the benefits of their industry, the ways to achieve that level of success depend on which theory of managerial efficiency they follow. Marc Holzer concluded that within the Classical Management Movement, "Frederick Taylor's monograph revolutionized the idea of ​​optimizing productivity." He did this through four principles, which were to improve standard work procedures, maximize worker capacity, initiate specialized training, and ensure a fair division of labor. As can be clearly determined, Taylor was focused on the idea that management must focus on getting the most possible out of their employees. Max Weber, although many of its members reflected Taylor's principles, focused specifically on bureaucracy. According to Weber himself, “bureaucratic models have hierarchical components” and the success of the bureaucracy “depends on technical competence and adequate training”. Many other scholars who focused on improving management effectiveness (Lyndall Urwick and Henri Fayol's 14 principles of management) created their own theories, but they all revolved around Taylor's original principles that prioritized workers' abilities. Frank and Lillian Gilbreth m...... middle of paper ......the potential of their employees and also create the best possible work environment. Even though the life of a manager may seem easy, the reality behind a manager who is successful in terms of performance and efficiency proves that many people would think twice about that idea. Over the decades, the role of a manager has changed dramatically. With the classical and neoclassical movements, the specific requirements of a manager have been debated and explored to see which is best for an organization. Managers must keep the organization efficient and productive through delegation and specialized training, while ensuring that the human needs of their employees are being addressed. Taking into account all the above reasons and evidence, it is clear that managers' decisions must be useful for the company and cannot even dehumanize their employees.