Some of the motivations for the companies are clear, as they look to sports to help drive streaming profits. Other reasons for launching the product are murkier and more company specific. Many media executives are scrambling for answers about a deal that could have major ripple effects in the industry. What’s the audience? At first glance, the venture is a big concern for the three largest pay TV operators, Charter , Comcast and DirecTV. But just how much they stand to lose is murky. One pers...