Well see here is how thw NBA works, listen closely. When a team is planning on shooting a 3 or from deep, they pass the ball around untill someone is open enough to shoot the ball without a problem. I wouldnt be guarding a player who doesnt shoot 3's very well, too closely, so when they pass the ball to him, hes going to be somewhat open. So to answer your question, its far easier to shoot a 3 when your somewhat open then what i said before. If you dont understand this, i might explain it again. Anyoneone who can shoot the ball decent, can shoot a 3. Not everyone can drive to the lane. If they could, dont you think there would be higher team fg%?