I would love this too. I know there would still be ratings of some sort but, they would be hidden. Even AP2k08 had hidden ratings but, I would love if our coaches and scouts gave us scouting reports. Even they use ratings but it's 0-5 scale. That way we would know the physical attributes like 40 time, 10 yard splits and whatever but also have how or coaching staff and scouts grade a player in our system. We could give them things we value like FB IQ or raw physical skill that are the things we value most.
There is so much potential with a better system. I'm afraid EA wants to keep it simple though. Have you heard how a typical Madden fan talks about the game. All this real stuff might confuse the heck out of them. Lol