or Edgar Allen Poe in the ravenIn the '90s a major railway was having trouble tracking/locating their cars using internal software. So they went to the experts Big Blue, IBM, to develop software. After several years and much $ the railway dropped the contract because they had no improvement over their own folks.
Modeling company functions for data collection is hugely complex, even for simple ones. And also requires ongoing mods. So for USPS, har. Ever done your family budget on a spreadsheet, then have an "oh poo, forgot that".
Probably a sweet heart deal for whoever programs and makes the hardware. Then, like
Emily Litella they'll say "Never Mind"