What do you think is Vesely's ceiling? Honestly, I don't know since he really has no NBA skills at all except dunking. He can't dribble, can't shoot, can't defend, can barely rebound. I don't think Washington will pick up his option these season, and I think he'll get one more contract after that, since , Thabeet also got another contract. MAYBE he can learn to be a center and stay for another contract. But that's a big maybe.
Richards has the physical skills to be a really good NBA player. He already can shoot, handle the ball and rebound. And he has quick feet for his size. He's taller and longer than Vesely, in addition to being younger. His problem is that he just has no awareness on a basketball court. So it seems pretty easy to fix, which will lead to him getting multiple contracts and sitting on the bench as a worst-case scenario.
So yeah, I think Richards has much more potential than Vesely. You can see what type of player he could become, which is a tremendous mismatch at the five. Vesely would need to figure a lot of things out just to have a position. He's young enough to do that, I agree. But even then, what's his upside? Maybe Bredan Wright as he is now?