Storrs is where you go to develop your game for the next level. The others you go to to hide your rough edges on the bench, ala James Young. Don't get me wrong, it works out for you as it did with Young, but he has done himself no favors in terms of development. All that talent. His first contract was good as the 16th pick, but who knows what his next contract will be like.
The kids that play early and go to the NBA from those schools are clear one and dones. UConn has had them with Andre Drummond, and Andre didn't develop a great deal in his one year at UConn either, but he had a lot of playing time. I am not saying UConn is any different as to how it treats its one and dones--it has had so few of them, and they pretty much played like the very gifted players elsewhere.
But there is a difference between the more raw players yet to develop who get that time at UConn and the ones who sit elsewhere.