There's no evidence, outside whatever anyone wants to read into his comments, interviews, etc. which are all pretty normal-sounding. He also is a Coach K / Duke product, which means... something.
I see similarities between Jah and Boogie Cousins (with an obvious discrepancy in ability, though I think Okafor could one day be, like, 75-80% of Cousins). But Okafor is 21 years old - giving him plenty of time to be molded and taught how to be a good professional young man. Also..... he would cost this team basically nothing - no reason to keep him if he proves a mistake, but offers the possibility of adding something on the court in spurts.
Finally, I believe in Brad more than Danny or anyone else. I'm convinced Stevens gets a say in decisions like these and while Danny has the last word I bet Brad has some sway. If CBS thinks he can add something, I'm in.