It's very similar to Forza Motorsport 2's customization, according to previews. And look what people can do with forza:
http://www.youtube.com/watch?v=unCb2pNfm1A
http://www.youtube.com/watch?v=FIzXh...eature=channel
So if people can do that, they could easily create the NFL.
I have Forza 2, and I can't create anything close to that, so the only thing is that Backbreaker
needs to have sharing of everything. Logos, uniforms, stadiums, rosters. Everything.
And to whoever said Backbreaker will be Blitz like, just listen to what the devs say. It will not be a straight sim or a straight arcade, it will be somewhere in the middle.