Fragility
Fragile, over-optimised supply lines don't help.
Centralising distribution and relying on HGVs reduces the number of points required for a system to fail.
Closing small abattoirs means more transport required for animals to be butchered, and increases costs in the supply chain.
Interrupting the supply chain to a large abattoir or a large distribution centre interrupts the supply to a larger area and a larger number of customers.
Reliance on cheap foreign labour is a fragile over-optimisation.