The better I've said, change the schedule for free, if we change one match timming, 24 hours before the match is played.
This is = adapted calendars for all countries, and all life-styles.
And have to change not a lot of things in the game because, the game can create the initial calendar like all seasons, and you only have to put for free the prices of matches than +24 hours.

(^-^)

Too can be good have players until they have 42 years old, but not in all cases, only like in % like in reality.
Too have players of 16-17 years old.
Too use the team of Mourinho to buy-sell players, thats interesting for players in top server without a good market.
And more things too too xD