Suggestion for Enthusiasm:
As someone who has played basketball most of my life (up to college). I find the enthusiasm element a little too powerful. When basketball teams play each other, they don't go out and take it easy to try and rest. I can't remember ever having a coach say: "Guys, let's not play hard this game because our next game is really important, and we need to save ourselves to try and win it." It doesn't seem realistic.
However, I do think it adds some more strategy to the game. If I were changing it, I would first reduce t he effect of enthusiasm on the games.
I think the enthusiasm needs to be tied with winning. As a player I can't see how I get more enthiastic after I get blown out by 40 points when my team TIEs. I would say keep it the same, but add the element of winning or losing to influence how much the enthusiasm moves. For instance if I TIE a game and win, my number moves just like it does today, but if I lose my game, it moves up half as much. Same with CT. If I win, My enthusiasm will move down less.
I don't know if this is perfect, but whatever is done, it needs to have a little less effect on the games outcome.
Just my .02 worth