In general I have always felt the players on the game do not react as they should. Ill give you an example:
1. Running with the ball is actually very tricky in my mind. If you press R1 almost every player on the game immediatly kicks the ball 5-6 yards away before they react and actually start running. Its soo stupid!!! The ONLY player i have used who is the exception is Messi but thats only because KONAMI have programmed it so the ball is not kicked as far when he sprints. In my mind, this is wrong.
Yes Messi has good control of the ball, but that doesnt mean every other player on the game is cannot sprint without losing it.
2. Headers are just ridiculous. On a corner kick its a lottery who scores especially when playing against the computer. Your players react waaaay to sloowly even if the ball is right beside them. The only way to minimise this is to control a player and move him near the front post...but thats soo unrealistic.
3. Reactions. This one is a big one. Throughout the game, the players just dont react as fast as they should. Just coz KONAMI attempted to slow down the game doesnt mean if i tell a guy to shoot sometimes he should do it at his own pace. Sometimes you can press a pass and by the time the player actually makes the pass, he is doing it to an area that the player you wanted to pass to has already left.
Then theres the player switching. I can remember countless times that i press L1 to switch players and it give me only midfielders whn i want a defender or vice versa.
and the funny thing is a lot of these problems only came into the game in recent versions...its as if someone lost the game code and they had to start again!
ITS STUPID.