The kitchen buys four times a week rather than once. It costs more in time and in trips, and it is the single decision that does the most for the food. Ginger bought on Monday and used on Monday tastes like ginger. The same root on Thursday tastes like the idea of ginger.
We work with three suppliers and have done for years. Two of them know the order before it is placed and will call if something is not worth sending, which is more useful than any contract. The third grows chilies, and in season we take whatever is ready rather than whatever is on the list.
The rule at the receiving door is short. If it does not look right at six in the morning, it does not go on a plate at noon. Nothing gets rescued by a sauce. A box that arrives tired goes back, and the menu bends around the gap for a day — the specials board exists partly for this reason.
None of this is romantic. It is mostly early alarms, cold vans and a lot of tasting things raw while standing up. But it is the reason the same dish tastes the same in March and in October, and that consistency is what people actually come back for.