USPS OIG: The U.S. Postal Service paid over $5.6 billion for contracts under the commercial products and services portfolio between fiscal years (FY) 2009 and 2015. This portfolio purchases a range of goods and services, including strategic consulting, logistics and fulfillment, market research and brand management, and financial and accounting services.

The OIG found that the Postal Service did not effectively manage external studies. There is no formal process to identify and catalog the universe of external studies. As a result, over a 6-week period, the Postal Service could not locate 30 of 97 requested studies, and the Postal Service also did not have a formal, consistent process to store, share, and retain external study results.  Read more.