The money cheat worked just fine when I began my campaign (turned it on, bought some players and it went to max), but a few games later I had used up about half of that money on inducements so I went to buy a new player to replenish my cash...only to find that everytime I exited the player-buying screen my money went back to the same level as when I entered.
I have the exact same problem. The game also stops responding when i try to alt-tab out. So i can't get access to my memory manipulation tool to alter the money myself.