1. Fund managers and marketing directors are jobs with extremely heavy workload and difficulty. They require a lot of energy, time and physical strength. Just one job can occupy a person's entire life. If you have too much energy, it’s basically impossible to work part-time.

2. A competent fund manager must read a large amount of listed company information and macro market reports every day, conduct industry and individual stock analysis, and make investment strategies and investment plans based on market changes. On-site inspection of listed companies, etc. A marketing director should formulate the company's marketing planning strategy and make plans for public relations, media, marketing and promotion, etc. If the fund manager also serves as the marketing director, basically there will be no time for investment. Because the accuracy of investment judgment is basically directly proportional to whether one works hard and is attentive.