I really think James Harden will do anything, to get a shot at the finals, and the cutting of salary is 1 proof of it but does he still play the same or he is completely different now, but judging from what he did, I think he is surely feeling it now, so he needs to do everything to his power for him to get to close to the rings, apparently I really think his age has gotten him good,
He's done almost everything but I think that's not all that he can do. It's true that he's really taking a shot for the finals and that's why anything that he can sacrifice, he'll do it.He wants to do it in his own way by pushing himself to the top, he's getting older and that's one of the achievements that he wants to have. Unlike some other players, they've got a reliable teammates and that's what he's lacking of.
I wonder how he looks right now. I feel like he was out of shape last season going to sixers. If he wants to win, that should be since he took a cut, he also should put some work on his conditioning. He is not that young anymore, so he really needs to put real effort to keep in shape for this season. Hopefully, they won't suffer any major injury, especially Embiid since he is prone. If they could stay healthy, they have a good chance to win the conference. For the Finals, let's wait and see. The west is quite stacked right now.
Why would they get Westbrook? 
Just like you said, they are on a rebuilding process and surely they wouldn't get a veteran player who is not on his prime years anymore. It's much better for the Jazz if they bet on the younger ones rather than the veterans, and if they get some veterans, that should be reliable enough to lead the team. Rumors are saying that Jordan Clarkson might receive an extension rather than a trade.
Just like you said, they are on a rebuilding process and surely they wouldn't get a veteran player who is not on his prime years anymore. It's much better for the Jazz if they bet on the younger ones rather than the veterans, and if they get some veterans, that should be reliable enough to lead the team. Rumors are saying that Jordan Clarkson might receive an extension rather than a trade.I guess if the Lakers offered Westbrook and a lot of draft picks, the Jazz would probably take him. It would be an attractive deal for both teams. Besides, as mentioned earlier, the Jazz management is rebuilding the roster anyway, and they obviously don't care much about where they finish in the upcoming regular season. So Westbrook, who has only 1 season left on his contract, wouldn't ruin anything for the Jazz because the Jazz would be outsiders either way.
The Lakers do not have any draft picks to offer though. They gave away all their future picks to the Pelicans to get Anthony Davis. The nearest first-round pick they have is in 2026. I doubt Jazz is interested to wait that long. They do not have anything that they can offer to go with the humungous contract WB has, especially to a rebuilding team like Jazz.