Add Alan Webb to the list of people who "cut the collegiate running short" and to the list of people who would "have a hard time adjusting" to training as part of a team and competing on a day-in-and-day-out level with others of high caliber. It sure turned out well for him. Webb's case, in my mind, demonstrates the huge positives of using your time in college to adjust to a different caliber of racing. Yes, Hasay competed (very well) at the trials this year, so maybe she doesn't need the intermediate step of college competition between high school and the pros. But Webb ran pretty damn well as Pre in high school, but he still, for me at least, needed that intermediate step. I use Webb because it's a very similar situation in terms of caliber as a high school athlete, in terms of absolutely dominating the high school scene and being capable of competing at a professional level. Webb needed the maturation that college gives you, and he's now paying the price for skipping out on it.
More importantly, you simply DON'T pass up a Stanford education.