NFL 2K1
Auto-offense play selection
At the play selection screen when on offense, press A(2) to have the CPU pick the most effective play.
Auto-defense play selection
At the play selection screen when on defense, press A(2) to have the CPU pick the best play to stop your opponent. However, do not press A(2) on 4th down, because the CPU will not select a punt return, or field goal defensive play.