Wanting the computer to accurately reflect the real-life rosters isn't really pre-determining the result...it would be cool control the 90s Bulls and every other team is performing the exact same way they did in real life and making the same trades, transactions and draft picks.
Or for example, stuff like David Robinson really getting injured and out for the season in '98 so the Spurs get the #1 pick.
Or after you beat the 96 Magic in the playoffs, Shaq leaves and goes to the Lakers AND they draft Kobe (as long as your team doesn't draft him.)
I know this will not happen.
But that would be cool as ****..