Weider is just the poster boy...he's like bodybuilding's queen of England, he has some say, but the real show is run by the judges (and by who pays them off).
Jay Cutler is Weider's baby...I doubt Joe would want to single him out.
And your answer to why didn't Ronnie get tested...
Did you guys see him? If he did use diuretics, they obviously didn't work. The guy was holding more water than the Hoover Dam...I still think Ronnie's the shit, but he looked like shit in October.