Associated Press:Â Andy Lack, returning to run NBC News, faces one of the same puzzles he tried to solve a decade and a half ago: how to make MSNBC work. While he was gone, MSNBC changed from traditional news to a political network with a liberal lens. Now that it is mired in a ratings slump, Lack’s mandate as chairman will be figuring out if MSNBC needs a complete overhaul or a sharpening of its mission. “The current picture is seriously ugly.”