The RFQ lands on a Tuesday with a 10-day clock. Your commercial engineer pulls the drawing into a viewer, cross-references the BOM hint against past programs, asks production for a capacity check, asks finance for the cost-model assumptions, and starts assembling the response in whatever format the OEM prefers this quarter. Half the time on the package is logistics; almost none is actual judgment.
By Friday the draft is at v3 and the same questions are circulating in email: what's the right tonnage assumption, did we ever quote this geometry, what tooling did we use on the last similar program. The answers exist — they're in PPAPs, past quotes, and the engineer's head — but pulling them together is manual every single time.
The fast suppliers win the nomination. Yours might be technically stronger, but if your response lands three days later in a worse format with less defensible costing, the OEM has already pre-decided. The bottleneck isn't capability; it's response-time.