Also add to that that mid-range jumpshots are the least efficient shots you can take in basketball and that taking them off the dribble makes them even less efficient.A pull up jumper requires no ball movement. I don't mean if he is wide open in space and pulls up, I mean if he has a defender and tries to pull up in his face. Just generally not a great play, especially if you aren't a great shooter.
It's all about getting to the rim, getting to the line, and shooting threes. Harris has shown that he can do all of those things, even if totally erratic on a night-to-night basis.