There’s a reason that crossovers, when executed properly, work so well.
The defender is usually putting all of his effort into going one direction, so when the player with the ball suddenly makes a move to go toward the opposite one, it often times creates an embarrassing situation.
Brandon Knight, meet J.R. Smith.
Knight clearly believes Smith is headed baseline, but a sharp behind-the-back crossover leaves Knight in the dust, and when the help defense tries to recover, it leads to a wide open look from three-point distance, which Kevin Love knocks down with ease.