The Warriors regaining Gary Payton II is a huge move. They realized their biggest mistake this past offseason was letting him go and immediately corrected it at the expense of Wiseman. His play in the Finals was vital to the Warriors; he was very disruptive with deflections, steals, offensive rebounds, and guarding a perimeter player at a critical juncture. Looking at the stats, he was over +15 in all of the wins.
If there's one thing that this team still struggles with it's getting outhustled (part of the reason we struggled mightily against the Magic, Thunder, and Bulls (Bulls' bench in particular)). We are one of, if not, the most polished team in the NBA, we execute better than most teams, but the aggressive, hustling opponent that gets back in transition has been our Achilles heel. Hopefully, our increased depth and trust in the bench can be a good counter to that this season.
It's going to be harder for them to come out of the West this season, but they'll be a tough team to beat if they do.