One concept that sports media executives still struggle to wrap their heads around is that building TV businesses on streaming, rather than cable, requires use cases beyond just watching games. After all, you need to give people a reason to subscribe and then stay on an app. On one end of the ambition spectrum is Fox Sports, which is launching its Fox One streamer primarily to capture so-called cord-nevers. On the other end is Netflix, which is integrating video games and experimenting with podcasts to hold people’s attention when they’re done bingeing.