My thoughts on this....The Jazz are holding out hope they can receive a salary dump before the season. Given that there are many teams with their MLE's open, I doubt it will happen for us, but better safe than sorry. This is also true just in case we take in an extra player in any other potential deal.
The Jazz want to sign their exhibit 10 guys first before Patty....why??? If you're an exhibit 10 guy, you probably want to ink up a contract soon to know where you're going to camp and eventually the G-League. If you're Patty, you don't really care and there isn't anxiety to find a place right now. So instead of leaving roster spots open that could be taken by exhibit 10 guy, they keep Patty's spot open just in case the salary dump comes about. It's better to keep Patty in the waiting room and not miss out on an exhibit 10 guy you wanted to take a flier on. I expect we'll see a couple more exhibit 10's come through soon.