1. Close cooperation: (1) Sign a long-term strategic cooperation agreement, which means that this lecturer only serves your company. (2) Sign the brokerage agreement, and your company is responsible for all the course scheduling rights of this teacher, whether it is the channel or the terminal. 2. Loose cooperation: (1) Sign the cooperation agreement according to the project, and sign the cooperation agreement for the courses if there are courses! Teacher management does not consume a lot of costs. (2) The training company signs a long-term cooperation agreement with the lecturer, but both parties are not bound by each other, but only agree on the details of cooperation in advance, such as the lecturer's class fees.