Chief among the benefits of purchasing instruction is the accountability the contract arrangement provides to schools. The contract is an agreement between the private-practice educator and the school or school board to provide a certain service. The contract specifies what will be provided, in what amount, by whom, and under what circumstances. Such an agreement can be terminated at any time, usually without cause, or it can be renewed if the arrangement is satisfactory for all parties involved.

Private-practice educators who do a good job teaching students will likely have their contracts renewed, or find themselves in demand with more schools. Those that fail to deliver will have their contracts canceled, or unrenewed. With proper monitoring and a carefully designed contract, such a system protects the school and students alike by retaining the best educators, and forcing the worst out of business (see Case Study #3 and Case Study #4).