I'm pretty sure the rule of thumb is to avoid camera shifts during the action except as needed to basically follow the ball. When you shift the viewpoint it takes viewers time to reorient their minds to what is going on; it may not be at all clear to the view why the focus has been shifted. Then, it takes time to shift your mind again once you shift back. The ball is the anchor for the broadcast. If things are going on in play on the periphery which end up having a big impact on what happens in a given sequence, the preference is to use replay (with explanation from the analyst) to provide that information after the fact. I know people complain about crowd shots and the like, but those shots are very often what a general audience will remember about a given broadcast: "that idiot in the hat" or the camera guy fixating on a particular person, or some kid doing something that will end up going viral on youtube. Many still don't like the ancillary video, but I think they underestimate just how much time needs to be filled with some video. The general viewer wants that stuff a lot more than a text graphic explaining wOBA. And what about sound? Can you image a baseball broadcast without crowd noise (even feeble crowd noise)? The non-baseball stuff is probably much more vital to the "feel" of a broadcast than most realize. Like it or not, all that stuff that hardcore baseball people dislike about broadcasts is probably very necessary to keep baseball ratings from sinking even lower than they are. The broadcast is entertainment (broadly-defined). I don't think they will be changing their formula anytime soon. One person noted upthread that if they wanted to see the crowd and stuff like that they'd just go to the games. I honestly think that's kind of backwards. Once at the game, you can largely ignore all that "fluff" and the crowd (with the exception of your immediate neighbors) and probably enjoy the game more as a hardcore fan than you can at home. You miss the immediacy of replay and some graphical information/breaking news that the broadcast might provide, but if you have a wireless device you can probably provide that for yourself.