You have to remember that they negotiated with Hill up until the deadline to extend him and couldn't get a deal done. If someone blows past the last number Jazz offered him during the season, he won't wait on anyone because Jrue, Lowry, and Teague are on the free agent market, and a few others could be available on the trade market including...... ISIAH THOMAS. Jazz may want to wait on Hayward, because Hill is more valuable to them if Hayward stays than if Hayward leaves, but they're not going to commit huge dollars to Hill if the franchise is taking a step backwards. They'll want to refocus on developing young players.
At least that's my take.