Maryville USPS workers struggling to get all deliveries done: Some workers are putting in 70-80 hour work weeks "A Maryville USPS worker WVLT News spoke with, who chose to stay anonymous, said COVID-19 and people quitting have caused staffing shortages. The employee said many of the employees work 70-80 hour work weeks trying to finish all the routes. Long hours and short staffing have caused some to leave."