What the coach can do is say "go full power" or "take it easy, it's just a friendly match"
So a very simple change that I would suggest, is to rename the Team Aggression to Team Effort.
And also, I would like to see a link between the loss of fitness during a match and the effort put in. It simply makes sense. If you take it easy, you waste less energy.
And as the last point, I would like the links between effort-fitness and effort-teamperformance to be exponential, not linear.
Example:
Example of how it is now:
Agression 0% ==> Lineratings 100
Agression 20% ==> Lineratings 103
Agression 40% ==> Lineratings 106
Agression 60% ==> Lineratings 109
Agression 80% ==> Lineratings 112
Agression 100% ==> Lineratings 115
(dummy numbers, but the ratio's are roughly correct) You see it is very linear.
In my proposal, it is like this:
Effort 0% ==> Lineratings 100
Effort 20% ==> Lineratings 105
Effort 40% ==> Lineratings 109
Effort 60% ==> Lineratings 112
Effort 80% ==> Lineratings 114
Effort 100% ==> Lineratings 115
The effect will be, that it will not always be necessary to go 100% aggression/effort, even if the referee allows for it. Because on the negative side you will lose more fitness.
With the proposed system, managers can get almost the same result with much less yellow and red cards, since playing at 80% or 90% effort will get you nearly the same result as 100%, and you will suffer less from suspensions (and new system, also fitness).
This is a good side-effect, because the amount of cards the referees throw over the field in SoccerProject is way over the top.
Playing at 100% will be only for special cases or in the most important matches.
I really believe this change will make SP more realistic.
It's not good for teams with low aggression, including mine, but I'll learn to live with that. I'm sure X-tenzo would kill me if this proposal is implemented, but it will also give him a good new challenge

What is your opinion??