Meh, Walker is a really good player who isn't a Max player. Those negotiations are always difficult. I love Walker, there have not been many bigger Walker defenders on the board than me, but there are reasons to wait on a contract.
1. Walker is way easier to deal as is than if he was signed to a large contract. Half the people on this board lamented not trading Lauri on his previous contract because now he is difficult to move on his new larger contract. If the Jazz made a mistake there, then this is a correction.
2. Signing Walker to a large contract locks your team into an identity. The Jazz have a lot of options on how to build their team right now. If you commit to Kessler, you are locking in to a certain play style, a play style that we just recently failed at. Conversely, this limits his league wide appeal. He is also a better target as a finishing piece rather than a building block.
3. Squeezing really good, non Max players as RFAs has a solid record of success. If he's good enough to start a bidding war, great! We win. If the jury is still out, we likely get him a a great price. What you cannot do is overspend on a Center in the modern NBA if that center is not Jokic.
That being said, I hope Kessler plays here for years to come.