A production line goes down at 2 a.m. Maintenance identifies the failed component within twenty minutes. Procurement spends the next three days trying to get it. That gap—between knowing what broke and actually getting it into the plant—is where most of the real cost of downtime lives, and it's rarely a maintenance problem by the time it gets expensive. It's a sourcing problem. Most plants have decent diagnostic capability. Fewer have a sourcing process that holds up when the