The Jazz have historically been able to fill out their roster with rotation players during free agency. Examples are: Al Jefferson, Mo Williams, Marvin Williams, Randy Foye, Trevor Booker, Joe Ingles, Joe Johnson, Jeff Withey. Unless the Jazz are getting a young player whom they believe they can further develop, there's no reason to jump for a rotation player just to limit the current team's long-term upside.
The Jazz intentionally held off on acquiring quality vets during the 2013 - 2015 season in order to develop their young players under difficult conditions. When they felt like the cake was almost baked, they went out and got George Hill, Joe Johnson and Boris Diaw to give the team depth.
I'd like to see the Jazz push Dante Exum and Donovan Mitchell, each with 25 mins/night to develop them, and even give Tony Bradley 10 minutes per night at the 5 spot.
I'm fine with 37 wins this year, if it means the Jazz can take one more swing in the lottery to get a talented future scorer.