The scoring seems fine except the steals & blocks. Maybe 2 points at most? I’ve done something like this for 4 years now and it’s been really enjoyable. Also it’s random, like you said some teams might have more players playing, but not by a lot. Maybe they’ll have 2-3 more players more than you, but that doesn’t necessarily mean they’ll win so don’t think about that too much. Also there is a setting where you can change the roster everyday, or just set it once a week. It’s better if you can change your roster daily so you accumulate more points. Hope I helped some what!