Behind the scenes, first lady Laura Bush is making big changes for the next four years. In the past two months, Mrs. Bush has hired a new social secretary and chief of staff -- and fired chef Walter Scheib III, who had been at the White House for 11 years. "We don't usually think of Laura Bush as firing anybody," said Ann Gerhart, a political reporter for The Washington Post's style section. "She is just as loyal as everybody else in the Bush family. So I think it's very unusual."