ok, i give up. the quotes above seem to indicate von wafer was not picked up due to a physical problem.
but then something is hinted at that looks to be behavioral.
what is the problem?.... beside not being a super basketball player? 
Take this FWIW, but Von Wafer failed to pass the blood test, not exactly the physical (don't assume "recreational drugs", btw).
I don't know about Von Wafer. I think he's a very good scorer and shot-creator, good enough to help pretty much every single NBA team, including the Cs. However, seeing him in Europe gave me a better understanding of how awful he's in every other aspect of the game. I don't know, he's not the type of player I think Boston needs, even though the quality is there. I wouldn't make an offer for him now, but I'd absolutely keep an open line with his agent.