The U.S. services sector grew at a faster-than-expected rate in October boosted by strength in new orders. The Institute for Supply Management's index gauging the health of non-manufacturing industries registered 55.8, up from 54.8 in September. Citigroup Inc. (C) has forced out Chuck Prince as chairman and chief executive amid word the financial-services giant will write down as much as another $11 billion in bad mortgage assets. Robert Rubin, the former U.S. Treasury secretary and co-head of Goldman Sachs, will become chairman. Time Warner?s (TWX) Chief Executive Richard Parsons will step down and be replaced by Chief Operating Officer Jeffrey Bewkes. Bewkes, identified as the heir apparent since 2005, will take over the CEO job on January 1st. Parsons will remain as chairman. IAC/InterActiveCorp (IACI), the Internet conglomerate run by media mogul Barry Diller, said it will break itself into five publicly-traded businesses. The company said its HSN home shopping network,...