Oh I agree. I can't sit here and pretend like I know Williams' exact situation. I just think it's a tough year to take a character risk considering the lack of young talent this team has acquired over the past few years. You have that challenging decision. If Williams is clean, you're likely getting a top of the line pass rusher even if he has limits elsewhere. If he's not though and he fails more tests and gets suspended, how does this team recover? Like you said (and even I've said it numerous times), if he does get picked by us, that has to mean Ozzie is comfortable with him. I just have a hard time believing that's the case.
Keep in mind that Williams concerns are largely off the field, so the largest part of his pre-draft coaching has been damage control. I would bet that his agent placed a strong priority on finding someone to teach him exactly what to say and how to say it.