So what do you do, sit the entire starting five for the last 17 games? 10 games? You risk injury in game #1 or #82. You risk injury by having players compete in World Cups. Heck, you risk injury just by having them step outside their door to go do offseason workouits.
Development is the goal of QS. And these players are FAR from being developed enough to dominate when the games really count. If anything, I want the Jazz players to see what games are like as opponents come in fighting for the playoffs, home court, etc. March and April are much more intense and rotations shrink. I want guys like Exum and Rudy working on their offense. And even Favors. As good as he was last night, he got schooled by the Pistons on his spin move. It was nice to see him then go to a baby hook. And even a dribble drive and finish. Those are things he doesn't do a lot. I want Rudy to continue to shoot 3's and be our starting SG. I want Hayward to learn how to drive without committing TO's.
These last 17 games are great opportunities for players to continue to experiment and learn. Sure, they want to win, but a playoff spot isn't in jeopardy if they fail. Just look at Gobert; he's never been in a position of shooting FT's to close out a game. He got tight and failed. Next time will be easier.