They're just a bunch of Dilberts there at Wal-Mart Corporate. Mr. Wasteofspace needed something to show the higher-ups that he was saving x amount of dollars by making things efficient. So he comes up with this garbage on paper, and talks in Corporatese ... sells 'em ice when they're already in Alaska.
The problem is that anything looks good on paper! I can sketch up a device that's supposed to attach to your ASS which will take your flatulence and convert it into energy that will power everything in your house, and run your car, too! But getting it to work, that's another matter!
This is the exact type o thing that some retard at UPS came up with. They'll plan the routes for their drivers, and install GPS systems in their trucks, so that every turn they make is right hand only. Right hand turns are far easier, and substantially less time and resource consuming, than left turns ... so all the routes they take are absolutely efficient. But I'd just love to see the moron who thought of it go on at least one shift and make the deliveries on his great new idea! Whatta buncha SHYTE!!!!