As an ex-FedExer, let me say that Walmart's logistics are fantatsic. We'd get electronic stuff flown into O'Hare from Asia,within 3 hours we had truckloads of it to the Walmart Regional distribution "warehouse" where they would load DIRECTLY into Walmart trailers for delivery, the skids wouldn't even touch the floor. Those teucks would be on their way to the stores in 90 minutes.
Two companies I'm aware of are justly famous for their logistics (aside from FedEx and UPS, who are in the logistics business).
Walmart is one. The other is Frito-Lay. The distribution centers receive product daily from multiple plants serving a given region. In the AM, that center will be full-to-bursting with fresh product that has arrived overnight.
By evening, it will be empty again as every bag will have been distributed to retail. That night, the cycle will start all over again.
Bagged snack quality is hugely dependent upon freshness. And Frito-Lay chips are almost always just 2-3 days old when they are purchased.
Indeed, I recall a case when I was working for them. A lady bought a bag of Fritos in a Dallas convenience store and was offended by the scent when she opened the bag. She called the HQ and complained, then was asked to send it in for examination.
Turns out, the bag she purchased in the convenience store at noon had left the production line in Irving at 10:30 AM. What she got was a whiff of nitrogen (which tops off all bagged snack packages) infused with the smell of corn and still warm cooking oil, which had yet to dissipate.
Sometimes, the product can be "too fresh"...