When editing the potential of players in the Editor, specifically young players that have a much lower CA than their PA, is it enough to just change for example the -7 to -9? Or change the -9 to 170? Or do you have to edit other stats, like their various attributes and such to get them to have that PA? I tried once to just change a few players from a -8 to a -9, but I didn't notice any difference when I started up a new game, they were still pretty average as far as their potential went. Is there perhaps any hidden stats or something?