Why would the teacher have an incentive to reduce the quality or her education during the normal class? Current scenario: Teacher makes lesson plan. Teacher te

Why would the teacher have an incentive to reduce the quality or her education during the normal class? Current scenario: Teacher makes lesson plan. Teacher teaches lesson plan. With this system: Teacher makes lesson plan. Teacher teaches lesson plan. Teacher sells lesson plan. If anything they have incentive to do better work as it would be more likely to get purchased.