By Traci Purdum In an effort to execute a successful restructuring and turnaround of its integrated steel business, Cleveland-based LTV Corp., which filed for Chapter 11 protection Dec. 29, 2000, has announced several senior management changes -- including the appointment of John D. Turner to the newly created position of chief operating officer. The duties of COO had been handled unofficially by William H. Bricker, LTV chairman and CEO. Turner, who also continues in his positions of executive vice president of LTV Corp. and president of LTV Copperweld, joined LTV in September 1999 after serving 17 years at Copperweld Corp. As COO, he is responsible for LTV's entire integrated steel and metal fabrication operations, including LTV Copperweld and VP Buildings Inc. (acquired by LTV in 1997). Turner recently integrated Copperweld, Welded Tube Co. of America, and LTV Steel Tubular Products into LTV Copperweld, manufacturer of tubular steel products and bimetallic wire products. LTV also announced the departure of three top executives: Richard J. Hipple, executive vice president of LTV Corp. and president of LTV Steel; James F. Haeck, executive vice president of LTV Corp.; and Norman P. Vernon, vice president of industrial relations, LTV Steel.