I heard people complaining of only 3 cameras, but I don't know the actual number or how it compares to industry practice.
What my point gets at is this: cameras are cheap. Processing is more advanced and cheaper than ever before. My cell phone has 4 different cameras in it. There might have been 200k HD cameras in that stadium. It seems like maybe we should live in a world where ESPN can place 100 or 1000 cameras at the game and get the perfect angle for every second of every play.
Obviously, until someone puts in the engineering hours to build the large-scale panopticon system and process the data in a usable way, we won't have it. I just think we should try.
Maybe one of you or I could build such a system.