One example of a successful CEO is Jack Welch of General Electric (GE). He combined various management approaches, like operations management, systems management, human relations approach, and so on, in his Six Sigma model. Therefore, I can definitely say that the situational or contingency approach to management is one of the best among the management approaches, whether traditional or contemporary. This approach is not only useful for managers, but for leaders as well.
Due to the complexity of the field of management theory and practice, I encountered some difficulties gathering relevant and most accurate descriptions and explanations of the various management approaches. The initial phases of the write up, most especially the library research part, consumed a lot of time. Nonetheless, the entire endeavour was fulfilling because I clearly understand now how and why the various management approaches emerged.