The truck left at 5:40. Half loaded. Not because the driver was slow — the packages that were supposed to be staged weren't where the load sheet said they'd be, and nobody had time to hunt them down before the truck had to roll. So it rolled light. Somebody in the field spent Tuesday morning waiting on pipe that was still on a rack back at the shop.
If you've run a pipe shop, you already know the story. The question isn't whether this happens. It's whether your system can stop it.