The Utah Jazz are in the middle of a rebuild. They traded most of the roster in the last year and are now growing with a new young core. Lauri Markkanen and Walker Kessler have proven themselves to be centerpieces of the rebuild. Utah has accumulated a wealth of young players and picks to keep trying for more talent. While they could simply continue to draft players and hope to pick up stars that way, the other option is to package those picks and young players to trade for a star player.
In the modern NBA, star players are demanding trades more and more often, forcing their franchises to search for the best return on the market.