I wish the 2-3 zone was as easy as that to get to work. I used the 2-3 zone in a game i was sure to lose just to see what it did: (71840643).There's not much more in that game i could have done about the defensive part. I got three bigs defending the paint that got 15+ ID/SB and 8+ OD. None of the guards have low OD and the two starting has 8+ in ID to.
They are both important. Imagine a player with phenomenal JS but average JR (unfortunately those badly trained players exist). He will demand the ball to shoot every possesion but he will be pretty inefective from long range