i need sum1 to record this,just found this out yesterday,basically what you do is sign in with two controllers,go to edit players, edit the players you want to have good stats(basically put all there attributes up to 99) click done and then (on the second controller button bash 'B' as soon as you have clicked done until your back at the menus and then go into a head to head and as your searching you need to create lag ( preferably a lag switch )and it will back you out to the team management page and then you search again and your done(you should by this point have all of the players you edited in the game when you check your squad)
if you didn't understand what to do or need help doing it cuz i can make you lag send me a message my gt is : Gormann x