If you have personnel who are also members at your parish, you can "link" their records. That way, if you change any information on either record, it's updated in both places.
For example, if you change the phone number for the member, the phone number for the personnel is changed, too.
Once you link records, you can quickly switch between them. When you're on the personnel record, click Go to Member in the Primary Information window to view the member record. On the member record, click Go To in the Personal window.