Good players don't cut corners.
Good players don't repeat mistakes.
Good players don't waste time.
Good players don't live in their comfort zone.
Good players don't play in the traffic.
Good players don't dribble without purpose.
Good players don't reflexly put the ball on the floor on the catch.
Good players don't force shots.
Good players don't take "selfish," "me, too," or "my turn" shots.
Good players don't lose track of their assignment.
Good players don't allow dribble penetration.
Good players don't "buddy run" in transition.
Good players don't play "silent" ball.
Good players don't hog the ball (ballstickers).
Good players don't stand around or "ball watch."
Good players don't constantly play at the same speed.
Good players don't whine, complain, and make excuses.
Good players don't cheat the drill.
Good players don't expose the ball.
Good players don't "bail out" from contact.
Good players don't lose situational awareness.
Good players don't rest on defense.
Good players don't settle.
Good player don't ever quit.
Bonus: Iverson Cut (shallow cut across screens from flat or horns set.