Tough ChoicesBy: Carly Fiorina The New York Times bestseller by the most talked about woman in American business. For five and a half years, Carly Fiorina led Hewlett Packard through major internal changes, the worst technology slump in decades, and the most controversial merger in high tech history. Yet just as things were about to turn around, she was abruptly fired, making front page news around the world. Fiorina has been the subject of endless debate and