WHITE HOUSE SHAKE-UP . . . MACK'S OUT, PANETTA'S IN

President Clinton announced a major reshuffling of the White House staff that's likely to improve White House relations with Congress. He replaced his affable Chief of Staff, Mack McLarty, who will remain as a "senior adviser," with Leon Panetta, director of the Office of Management and Budget and a former power in Congress. White House adviser David Gergen will move to the State Department and Alice Rivlin, Panetta's deputy, will become the first woman to head the OMB. The moves addressed months of criticism of McLarty, an Arkansas businessman and boyhood friend of Clinton's who has been derided inside the Beltway as not tough enough for the job. The Gergen shift is designed to counter similar criticism of Secretary of State Warren Christopher, whom Gergen will serve as "special adviser to both the president and the secretary of state."