Guys, i think this is more simple than we think...
- 1 week delay to each trade (For GM's to check the trade)...
- Up to 3 players per 1 player. The trade is ok under GM's control...
- The teams can't sell the traded players until the end of season
- 1 trade per season to the same team
- trades are available until all star game
Also, weekly amounts like wage, could be given as trade
Draft pics, also could be good to trades...