Prospects are all potentially awesome until they play in the NBA. Sometimes they even stay potentially awesome for a while longer. Harrison Barnes still has a posse of fans out there on the internets waiting for him to take his game to the next level and fear and woe to all that get in his way, they are taking names. Truth is that very few prospects become stars and that "player development" is essentially the basketball version of Sasquatch. Lots of people talk about it, but it is always rumored to be happening on some other team.
No one ever sees their favorite prospect develop on their own team. It always turns out one of three ways: Coach leaves your favorite prospect glued to the bench, wasting away because he doesn't know how to use him, or maybe your coach pushes your favorite prospect out on the floor with a bunch of selfish vets who don't share the ball, or worst of all your favorite prospect goes on the floor and sucks it up so hard that he loses his confidence, never to recover. All three are obviously coaching issues, right?