Graphics in FIFA2000 is perfect enough, but every player should have his own face like in NHL 2000.
Sound is beautiful, I dont need big changes.
The field should be biger so it would be real football(soccer).
Scoring is made well, but there should be add some lucky goals from longer distance shots.
The rosters should be more real, every player could have HIS real properties.
The clubs values are NOT real and there could be impemented more money transactions (bonuses for the wins, etc.)
And the most important: THE GAME MUST BE MADE FOR THE PLAY, not for the action, so its important to make whole match harder and longer without scoring so many goals. So lets create HYPER dificullty for good players.
(I play 4min match and the board shows 5:3
or more)

Looking forward to FIFA2001 with all this good changes.