JJ was consistantly going under screens and daring Parker to shoot.
JJ's job against Parker was just to keep him out of the lane. His advantage was that he has the size to contest his shot. Everyone, including Parker, knows thay can shoot over Nash.
I love JJ but I think he is somewhat limited as a PG. I am curious to see how he does when he is the focus of the defense instead of the recipent of open looks from a Nash/Stoudemire pick and roll. How will he adjust when he can't break people down one on one because he is getting double teamed? Still that is what you want, a player that commands a double team.
He does play every game and play hard. Great handle, great size, and a deadly shooter.