I think confidence would be an interesting attribute to have. If a player misses a shot or has a bad game, it could impact his confidence for the next few games until his cold streak is over. One way to counter this would be to improve his confidence. I would make this harder to raise so it's not just another TPE dump. Make the scale different to the rest of the upgrades and it can't be a strength. The more confident a player, the less likely he is to be shook after a bad few plays or games. My player is currently shooting at a trash percentage and this would have a negative impact on his confidence until he finally scores a goal or two again. If his confidence was higher, maybe he could get over the hump sooner. The most it can go to is like 85 or whatever in the new engine. Just so it's not something that can be OP.