Aren't Williams and JJ pretty much the same size?
Marvin Williams is 6' 9" or 6 10"
A good deal taller than Joe Johnson and he's been thriving on 3s, something that a small guard would have trouble contesting. I wouldn't be shocked if Williams would feel rather comfortable posting Bradley up as well.
You're right. Marvin Williams can post up and although he isn't a scorer like JJ, you can't let him have a go at it in offense, because when he starts to knock down jumpshots, he is well capable of scoring.
To be honest, both are horrendous matchups for Bradley in terms of size. But the way JJ plays, he can easily go for 30 in such a matchup, so, I don't know.
Let's just hope Atlanta puts Hinrich in backcourt. He has a slow step and is a favorable matchup against Bradley.
And no. A couple of good games against an out of rhythm Wade don't completely convince me that Bradley can defend every other big SG in this league.