Great in theory....but probably impossible to implement in a succesful way into the game...
Hence the classic match scripting templates which are meant to mimic how real games are played out. Arguably in 1 player mode, this is an ok thing (except when u keep replaying a crucial Master League game against some shitty inferior team the CPU just does not want you to win). But in 2 player mode, it is about as welcome as a dose of bowel cancer.
Maybe it is Impossible.. but I think it's too soon to start labeling things as "impossible to implement".
I don't know that much about programing, etc, etc.. but maybe Konami could come up with a system to Dictate the Happenings on the Pitch. For example, creating a New system that consists of; 2 Stats and a Confidence Level Gauge.
The 2 Stats Determine each player's "Confidence Level" -and- the "Confidence Level" Dictates the happenings on the Pitch. The 2 Stats could be; Mentality and Consistency.
1) Mentality - To determine how well a player copes with the pressure In the Pitch. The higher this Attribute, the more Consistent the player is throughout a Particular Match.
- The Mentality dictates the "Confidence Level" of each Player -and- Consequently each Team.
2) Consistency - To determine a player's Consistency throughout the Season. the higher this Attribute, the more likely the player will start the Next Match with a good "Confidence Level".
- So the 2 Stats complement each other -with- the Mentality Stat having more of an Influence in a Game -and- the Consistency Stat winning more Importance in Longer Tournaments.
And with this 2 Stats, the Game should have a bar or gauge to represent each player's "Confidence Level" throughout a game. Maybe a 1-99 Gauge, the higher the Confidence Level -the- better the player will play, with Stats going up for a given time.
On the other hand, if the Confidence Level of a player is Low -then- his Main Stats should go down -making- him harder to find on the Pitch, making him Less Effective for a given Time (momentarily) -or- until you can get him back in the game.
And, each player's Confidence Level should Vary Depending on each player's Mentality and Consistency Stats. I think something Similar would make each game feel unique and more Realistic -because- more things would Decide the Outcome of each Game.
And what better way to Dictate the Momentum throughout a Game -than- via Reliable and Precise Stats..
Maybe it is impossible (as you said) -but- It just doesn't sounds Impossible.. Maybe in a couple of years.