While speculation has wielded mostly around senior advisor Pete Rouse as White House chief of staff Rahm Emanuel's replacement should he run for mayor of Chicago, CBS News Chief Washington Correspondent Bob Schieffer went on the record Tuesday with another pick-- former Senate majority leader Tom Daschle. "The president could do worse than Tom Daschle," Schieffer said. "I'm not in the business of advising presidents on who to hire or what to do, but he would be a very interesting choice." "Chiefs of staff make an enormous difference in any White House- Republican or Democrat," Schieffer told CBS News' Jan...