Manheim Auctions announced several management changes at the corporate level and also at two Michigan auctions. Mike McKinney, formerly general manager of Metro Detroit Auto Auction in Flat Rock and Michigan Auto Auction in Mt. Morris, has been promoted to group operative vice president, Southwest. McKinney has been with the company since 1993. He succeeds Mike Broe, who was recently promoted to vice president of career development and human resources.Joe Maltese, auction manager of Metro Detroit Auto Auction, will assume day-to-day operating responsibilities for the auction. Victor Ferlaino, recon operations manager, has been promoted to assistant general manager of the auction.Eric Wagner, former assistant general manager of Metro Detroit, was named auction manager of Michigan Auto Auction.