From what I've learned so far there are 2 kind of effects; the enthousiasm level (like 5,6,7 etc) and the setting you choose (like TIE, CT, etc).
In what way do both components influence the enthousiasm level for a game?
the enthusiam level increase the ratings, the setting effects the randoim decisions in the game.
So both increase your chanche to score basket, get a rebound etc.
Which teams generally plays better? level 7 with TIE of level 5 with CT?
Clearly 5 with ct, bot with 7 and TIE you are much stronger in the next game.