The Chapter 13 Trustee's role is not just of an overseer but is much more involved. In some instances, there will be one trustee handling all Chapter 13 work in a particular area but in the Eastern District of Wisconsin currently there are two trustees. There is no liquidation involved in a Chapter 13 case so the trustee's responsibility is to manage the financial affairs of the debtor. The trustee must be present at all hearings that concern property valuation, must ensure that all debtor payments are received and also oversees the disbursement of money to the respective creditors.
The United States Trustee appoints a "standing trustee" to administer cases in a specific geographic area.