I think we need some sort of ability (aka average) modification. It shouldn't be all upwards, either. Maybe all players who performed lower than their average get it decremented, and all players who performed higher get it incremented, by a random number between 0 and 5 inclusive.
Also, if you wanted to make it more intensive, you could introduce salary systems, and a salary cap for each team. I'm not sure the competition/managers have matured enough to put something like that in place, though.