When Jonathan Wald was fired as executive producer of the "Today" show, he says, "I wanted to stay in the game and get back into the daily battle." When Josh Howard was forced to resign as executive producer of "60 Minutes II" after the botched story on President Bush and the National Guard, "I frankly wasn't sure, after my last experience, whether I wanted to work in television again." Both men landed at CNBC, where they are helping to retool programming on a business channel that has struggled in the ratings since the dot-com bust six years ago. Wald helped...