This is just a purely academic response to your question, but if you took me straight out of high school, and just dropped me into an apprenticeship-type situation in any medical field, I'm pretty confident I could come out just as competent had I gone through the classical college->residency gauntlet, and probably in a shorter amount of time. This of course assumes I have a minimum level of intelligence/work-ethic, a passion for medicine, and there were enough willing doctors going around to fulfill the demand for apprenticeships, but I think it's thusly theoretically possible to do away with college, although it would never happen.
