He is not ready.
He is the type of player that will be really hurt by a lock out.
I am not sure I agree with this. While I would prefer he was working out with the C's staff/players, if he gets with one of the better trainers to work on his game, it really shouldn't hurt him too much.
The thing about Bradley is that his fundamentals are very lacking. He appears to be one of those guys who killed it in highschool based on his athleticism, but never really learned how to play properly. So, when he got to college, he didn't have a great transition, because suddenly he wasn't dominating anymore, because he was facing guys with similar athleticism that also knew how to play the game. Then, he had the same experience in the pros.
So, I think what he needs (and what the C's have been doing with him) is to basically relearn the game. They are trying to break his bad habits, and teach him the proper way to play basketball.
I still think he is a long way away from being a productive NBA player for this reason. Until he can build that foundation, that most of these guys get when they are in highschool or even younger, he will not be able to fully take advantage of his natural gifts.
So, to have an extra year, where he can basically lock himself up in a gym with a worldclass trainer, and just work on the basics, learning how to handle the ball better, and learning proper footwork (his footwork is pretty terrible on both sides of the ball, even though his feet are incredibly quick), rather than having to concentrate on getting ready for games, could be really good for his development.