Why do openings go wrong when every supplier did their job?

Because the failures live between the suppliers, not inside them. The designer draws before the feasibility numbers exist, the kitchen vendor quotes before the menu is frozen, the contractor prices without a measured bill of quantities, and the trainer is booked to a handover date the build has already missed. Each invoice is defensible; the sequence is broken. A setup needs one owner of the gates — a party accountable for the investment case end to end, not for a single deliverable inside it.

From The Complete Restaurant Setup Process in Dubai — Every Workstream, in Order — the full reading, with the method behind this answer.