It depends entirely on how well they pick up the new offense. RICHT wouldnt even give Williams a chance to beat out Perry or Rosier last year, that doesnt speak well about his chances. But maybe with a new coach he'll blossom.
Even if Martell is given a waiver to play, I think Williams beats him out (if it's truly an open competition, which I highly doubt).
I can't see how anybody knows anything about Wiliams as a college QB right now.
I'm not knocking him; there is just about zero body of evidence to go on.