Webb off the Reservation

Wonder what the odds are of when Webb becomes independent or, a ghastly Republican?  This may hasten the move: http://online.wsj.com/article/SB10001424052748703724104575379630952309408.html?mod=e2fb.  He's always been a little on the iconoclastic side and one thing that scares the short pants off both parties is a fellow member that cannot always be counted upon.  Webb's that guy.