I understand where you are coming from but the ESPN and NFL network are obviously competitors. Since Madden is a NFL game, it isn't surprising to see NFL network personalities in the game.
In terms of things being 50/50 split that's not going to work seeing as how both don't want the other one being in the game.
But yeah the CD guys have said the ESPN/NFL network "feud" is true and a good number of members have said that Ian said it.
Anyways as I've said in another thread a name is just a name. You could slap on a network name to a sports game and that still doesn't mean that it'll have good presentation. You can still have great presentation without a network name (e.g: NBA 2K10).
Now getting on topic (sorry OP lol) this would be a cool feature but I don't know if they would actually take the time to implement it seeing as how I don't think that there's a good amount of people that buy multiple sports games in the same year. I like and agree with what Watcher said... This would be better as an online feature.