Defense Secretary Leon Panetta will leave it to his expected successor, former Sen. Chuck Hagel (R-NE), to issue guidance for the Pentagon's 2014 Quadrennial Defense Review, a sweeping assessment of defense priorities that comes amid a national fiscal crisis. "Panetta isn't expected to take action on the QDR before leaving office," a senior defense official told InsideDefense.com . That means it will be up to Hagel -- assuming the Senate confirms him for the defense secretary job -- to approve...