We assess the level of competence of the person performing the controls in relation to the complexity of the control being performed As the complexity and level of judgment increase or the level of competence of the person performing the control decreases, the extent of our testing increases due to the greater potential for the control to fail to operate effectively and consistently throughout the year.
We also consider whether there have been changes in key personnel who perform the control or monitor its performance. Where there have been changes during the period of reliance, we consider testing the control both before and after the change in personnel.
Also consider whether there have been changes in key personnel who perform the control or monitor its performance."