Earlier quoted context omitted.
This mirrors my experience. Not once did I have a Yellow LTL shipment arrive on time, and typical delays ranged from 2 days to 2 weeks or longer. Shipments would get lost in a terminal, down to staff insisting it never arrived on the trailer, and then spontaneously reappear after a loss claim was filed. I would've loved to avoid them but vendors would often choose them due to their cost.
It's very difficult to implement radical change in an organization when unions prevent you from firing low performers w/o exorbitant costs. You see this across the public sector where it's practically impossible to get fired unless you do something egregious. Lots of union defenders here ignoring that unions make reform impossible.
Look at UPS - union shop, going strong. Management is organized. Company is doing fine.