I think all that would do is cause people to complain that they are historically unlucky, or call for the random factor to be reduced. I think the system is fine as it is now. If i have an SG who is usually a 50% shooter, and he has a night where he only shoots 30% thats fine - happens all the time in real life, and I assume he'll have nights where he shoots 60% too.
You want people to stay focused on the skills of their players in relation to how they lost the game, looking at box scores, trying another tactic, etc., not give them an out by introducing a "how bad did i get screwed" meter.
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