Like most retailers, the Postal Service uses mystery shoppers — customers unknown to the retail staff who fill out evaluations on their shopping experience — to determine how well retail units are performing. Not every postal retail unit is visited by mystery shoppers. Only units with a certain amount of revenue are included in the mystery shopper program.
No pain no gain. The U.S. Postal Service has reduced spending over the past decade but it has come with a downside, notably a reduction in service. Over the past decade the Postal Service has reduced labor costs by $10 billion, improved productivity, and generally reined in spending.