My suggestion is to reduce the gap (not in each game but in average) between the less agressive and the most agressive teams by increasing the agressivity of the less agressive players. For example if agressivity is a skill from 0 to 10, 10 is very agressive, all the players under 3 should be set to 3, and all the future draftees should be between 3 and 10 (for example). Like that we don't have to change the GE.