I think the Jazz should trade up to get McCollum and feel gratified if they get one more rotation player out of this draft. There are plenty to choose from. That would earn them an A draft grade.
They'd also hit a home run if they could acquire another pick in their range and get another talent like Adams, Giannis, Rice Jr., or even Saric to go along with McCollum or Schroeder. That would be an A+.
Why trade up for McCollum? Is he really a game changer? Stay pat, draft wisely, and you'll have 3 rotation guys, not 2.