During your home line-up window,press the R3 button. You did not need to pause the game. A debug screen will appear,choose the 'money' and press the X button till u reach $2B.Then press the Triangle button to exit from the debug screen.
Debug Mode
Press R3 when at the "home" screen. A debug mode will appear.
Get Any Player You Want
Go on to the line up screen and then go right down to the bottom. Pic any player from the grey selection and go on player details. Then when yo are on player details go on comparisons. Then choose any player you want to swap with and then swap the player. Make sure you dont give them monney when swapping. You can use this cheat as many times as you want and create your own dream team.