For each of these five separate cases, identify the principle of internal control that is violated. Recommend what the business should do to ensure adherence to principles of internal control. 1. Heather Flatt records all incoming customer cash receipts for her employer and posts the customer payments to their respective accounts. 2. At Netco Company, Jeff and Jose alternate lunch hours. Jeff is the petty cash custodian, but if someone needs petty cash when he is at lunch, Jose fills in as custodian. 3. Nadine Cox posts all patient charges and payments at the P-Town Medical Clinic. Each night Nadine backs up the computerized accounting system to a tape and stores the tape in a locked file at her desk. 4. Barto Sayles prides himself on hiring quality workers who require little supervision. As office manager, Barto gives his employees full discretion over their tasks and for years has seen no reason to perform independent reviews of their work. 5. Desi West