These CIOs go way beyond IT-business alignment

Meet the pioneers of extreme IT-business convergence. At these companies, it's hard to tell IT and business apart. Vanguard and Zappos.com are two of a small number of companies where business and IT are virtually indistinguishable. Others on an admittedly unscientific short list of pioneers in IT-business convergence are The Progressive Corp., Southwest Airlines Co. and The Procter & Gamble Co.