Any given activity may fail to produce adequate outputs for many different reasons. Some failures will be the result of a failure in process flow. The work assigned to the activity is not appropriate or properly understood. But, a flawed activity also represents a management failure. Managers are responsible for ensuring that the people assigned to the activity understand what they are to do and have the resources to do it. And, they are responsible for checking to see that the activity is done correctly, and that corrective feedback is provided if the activity is not performed correctly.