I haven't read all suggestions, so maybe this suggestion has been mentioned before.
Alright, at real life managers and scouts judge players differently.
I mean, two scouts can rate players differently.
For example, consider two scouts A and B and a player C.
Maybe A rates C's finishing as 16, while B rates C's finishing as 19.
On the other hand, it might be according to A, C's crossing is 14. But B says that C's crossing is 17.
So, in FM2011 it would be great that when I look at Messi profile, I can see 6 or 7 different sets of attributes (taken from different scouts). The real attributes from the game engine are still fixed, but I think it should be hidden and we can only see the attributes taken from the scouts valuation.
Something like this :
Lionel Messi, by Roberto Bettega :
Corners 14
Crossing 15
Dribbling 20
Finishing 18
etc
Lionel Messi, by Wolfgang Dremmler
Corners 11
Crossing 14
Dribbling 18
Finishing 15
etc
I don't know whether the programming will be hard, but i think this suggestion is good as it adds realism into the game.