USPS OIG: Manual Mail Processing Efficiency
"We found the Postal Service is not processing manual mail at optimal efficiency as productivity in the Postal Service’s manual operations continued to trend downward. Productivity decreased nationwide by 8 percent between FY 2019 to FY 2020, and by 10 percent during the first three quarters of FY 2021 compared to the first three quarters of FY 2020. During our site observations and interviews, we found inefficiency in manual mail processing can be attributed, in part, to lack of management oversight and employee availability and staffing issues."