PITTSBURGH, Feb. 3, 2011 /PRNewswire/ -- United States Steel Corporation (NYSE: X) today announced several management changes at its North American and European operations. Malisa J. Sommers has been appointed managing director - transportation and president of Transtar, Inc., U. S.

PITTSBURGH, Jan. 19, 2011 /PRNewswire/ -- United States Steel Corporation (NYSE: X) today announced three management appointments in its supply chain organization effective immediately. Gerald W. Gagliano has been named general manager - customer service. Gagliano replaces Elizabeth L.

PITTSBURGH, Dec. 13, 2010 /PRNewswire-FirstCall/ -- United States Steel Corporation (NYSE: X) today announced several appointments in its North American operations unit effective Jan. 1, 2011. Scott H. Coleman has been named general manager of Great Lakes Works, U. S.

PITTSBURGH, Dec. 2, 2010 /PRNewswire-FirstCall/ -- United States Steel Corporation (NYSE: X) today announced several executive transitions effective Jan. 1, 2011, following Executive Vice President and Chief Operating Officer John H. Goodish's retirement from the company effective Dec.

PITTSBURGH, Nov. 29, 2010 /PRNewswire-FirstCall/ -- United States Steel Corporation (NYSE: X) today announced two management changes at its European and North American operating facilities. Mark G. Tabler has been named vice president-operations at U. S.