If the cutter takes two steps, that means he is going all the way to the basket. He can jockey with his defender and move his shoulders back and forth and try to duck behind the defender, but the passer should not have to guess whether or not the cutter is going. As soon as the second step begins, the cutter is going. If both the cutter and passer are sure of that, the cutter can be led and can score even when he is very well guarded.
From Dick’s book Stuff