How to choose the chairman and general manager of the group in the enterprise group?

In the general enterprise structure, the chairman is at the highest level of the enterprise and leads the board of directors, which is generally elected by all directors. The general manager is the person in charge of enterprise operation, and is generally appointed by the board of directors. Therefore, the chairman of the board is the leader or representative of the shareholders, and the general manager is the representative or leader of the company manager. Who has more power? Generally speaking, it is the chairman of the board, but there are exceptions, that is, the board of directors authorizes all the power to the general manager, and the chairman becomes a virtual title, just like some countries have great power, while others are just symbols, and the prime minister has great power. Similarly, the president is generally elected by universal suffrage, while the prime minister is generally authorized by the president to form a cabinet.