The Decision Coach Carter closed the gym because the players grades were poor. I think that it was a good idea to close the gym until the boys grades got better because it was bettering them and they will have bigger opportunities. It took awhile for the boys to get their grades right, especially when they were having other problems outside of school. Not only did closing the gym helped their grades but it helped them become better people. In spite of people disagreeing with Coach Carter and that he almost quit his job, it made the boys want to work more in order to become better people and make the Coach happy. Closing the gym was a very hard thing for Coach Carter and the boys but it was teaching them to become discipline.