I think teams look at drafting the most rare and valuable asset when they pick. They're looking to get talent through the draft that will be difficult to get any other way. Talented bigs, legit stretch 4s, potential go-to scorers, etc. normally go near the top of the draft.
If the Jazz want a guard just to shoot the ball to space the floor a bit, they can actually get that through free agency and low-cost trades. Guys like Mo Williams, Randy Foye, Marvin Williams, Gerald Green, etc. can all shoot the ball, and can get picked up fairly readily. We were flat-out giving guys like that away a couple years ago.
This is why I'm not 100% sure we'd use a lottery pick to take Booker. It really depends on whether he can do more than just spot up and shoot the ball. What can he do better than Hood?
If we really can't get a starting caliber wing, someone who can put up 20 ppg, then I do think we may look at getting a versatile big who can really shoot the ball--basically, someone to replace Kanter. I think Looney, Lyles, Porter and Turner do come into play.