Very soon, within just one week, the number of members in our badminton community has reached 60. Moreover, I've set up a management team consisting of 4 people. There is a professional coach in the team. Also, there are two team members responsible for posting the sign - up lists for badminton sessions. With the power decentralized, the efficiency of collaboration has been quickly demonstrated. I plan to cap the number of group members at 200 in the future. This is a public - welfare project.