I love CYC Becanes but in fairness the rating system does have flaws. You can put in an amazing cross that your donkey of a teammate decides not to head, and you get marked down (sometimes a lot) for losing possession. If you do an amazing cross, you get out of your chair and say "oh my God that's brilliant", and then your striker decides to walk backwards and let the defender have it - despite the fact that it was pin-point accurate, homing in on his forehead - it's really disappointing to see your score drop heavily because of it. In reality you'd be getting praise for such an accurate cross, and the moron of a striker would be substituted because it would appear he's been bribed.
Same if you make a simple pass and your teammate doesn't "lock on" to it and starts running away. Possession lost and points taken away for you. It's simple, straight to feet, no defenders around, but he's running away from the ball instead of to it and the CPU have plenty of time to collect it.
It doesn't happen too often (or at least it doesn't for me), and in fairness there's some instances where you can understand it would be difficult for the game to see things the way a human mind would - I think there's a lot of things being expected that are too much to be expected from a computer game, to be honest. I used to expect a lot but I'm now resigned to the fact that programming a single-player football game is obviously extremely difficult.