Oh, one last note. To see what the game has to offer, you should at least make 1 player, buy some equipment with the cash they give you to start with, and accept one of the offers from a CPU team. That will give you a chance to see the flexibility in the game and probably actually be a starter.
Then once you've played a game, you can watch play by plays of the entire game (every play is simulated).
Here is an example: http://goallineblitz.com/game/replay.pl?pbp_id=304952
Thats an 84 yard TD pass, one of the top 10 plays of the week :)