Both Jack and Calderon have been effective as starters and reserves. If you can sign one of them on the cheap, with the understanding that they'll start until an adequate replacement is found, and then mentor that replacement, you do it. Despite my past hate for Calderon, he'd be a decent signing for this team (even if his conservative style isn't a great fit with Utah's young talent). He's steady, under control, makes the right pass, and is a knock down spotup shooter (he won't help getting out in transition or setting the tone defensively, and tends to pound the ball a little much, but beggars can't be choosers).