Use the following trick to get any player in a trade without the other team rejecting. In the franchise mode, create a player as a quarterback and move his attributes until you get to 99 points. Then, put his injury and stamina down to 0. This will not change the attribute point level. Sign him as a free agent then trade him to any team for anybody you want. When you play the team he is playing for, after a couple of plays he will either become injured or will be taken out of the game for his weak stamina. No team will refuse your trade and you will have any player you want on your team.