Revolving Door | SportsNewser Jim Riggleman To Work White Sox-Cubs Series For Comcast By Marcus Vanderberg on Jun. 27, 2011 - 9:40 PM Former Washington Nationals manager Jim Riggleman is wasting no time returning to work. Riggleman will join the Comcast SportsNet crew this weekend for the Cubs-White Sox series and provide analysis during the pregame and postgame ...