Red beads and funnels.

Abstract

Dentists, like most managers, believe that unanticipated team results are evidence of poor performance on the part of employees. While this can be the case, it is much more likely that most variation is inherent in the system and is probably not under the control of staff. The dentist, as the manager, has full control and full responsibility for guaranteeing that the office runs effectively and for improving its operation.