I'm fairly confident in Harris. But I also think (wish/dream/fantasize) that Ty plans to change the offense from being less centered on the PG. We have suspect shooters everywhere, but we're also one of the few teams that have 4 guys that can drive AND pass -- Hayward, CJ, Harris, and (hopefully) Burks. Jerry would have plugged those 4 into the system. I have to believe Ty is going to implement a lot more pick and roll from different attack points like the Mavs. Harris can fit well into that. He can also push the ball which I hope Ty plans to stress. The dude is fast on the dribble, and he can make stuff happen if we have a concept to get out on the break relentlessly.
Harris in the "Jazz System" is nothing special. Harris used right could be.