What are the advantages and disadvantages of promoting managers from outside the organization?

Advantages: 1 Enhance the sense of crisis of internal employees and enhance the combat effectiveness of on-the-job employees. 2. It helps to establish a reasonable promotion channel and improve the sense of belonging of new employees. 3. Enhance the cohesion of old employees. Disadvantages: 1 External promotion requires training, and internal recruitment can be quickly employed. 2. Affect the job performance of employees in competitive positions, as well as employees' self-evaluation and sense of belonging to the enterprise. 3. It is easy to cause internal employees to alienate the enterprise organization. Just improvising, for reference only.