[krapht]

This goes for all professions. If only $x-person was more highly credentialed then they wouldn't have made $y-mistake.

That's fine until $z-cost-of-service is > $some-number. I think we've reached that point in the United States where we can discuss reducing professional barriers to entry in order to bring down costs.

[Engineering-MD]

Your argument is sound, but the cost of tests/treatments and overall number of staff dwarf this amount. By training the top grade more and giving more weight to their clinical acumen, you could save costs on unseeded tests and treatment. Having said that as a physician I am biased.