> In reality, your doctor would simply stop testing for Coronavirus and instead refer you to a LabCorp collection center, where they could keep you waiting in line until they had enough testing capacity to take your sample and start the 24-hour clock. Everyone loses.

This kind of sounds like a semi-win. Eliminate the middle man between the patient and the lab. Provide visible backpressure by refusing to accept requests that can't be serviced in a timely fashion, allowing those requests that are serviced to be timely.

It doesn't help the problem of more demand for tests than supply of testing (or at least, not directly). But it's better to have all (or substantially all) results in 24 hours, than to have all results in a pipeline for a week.

Also, maybe start at 48 hours, if 24 hours is too restrictive.