I think that when you have overwhelming success with something it's hard to go away from it.Is Kerr a bad coach? Asking for reals. I don't think he is bad but may not be the genius everyone thinks. Klay/Wiggins are priorities obviously but they have been so rough you gotta switch things up. CP should be playing less until he looks more spry (he may be fully washed).
Maybe Kuminga and Moody look better in a different style? Maybe we can buy low on Moody? I am not sure they bite the bullet on Paul or if they would consider JC a fit for what they do... but JC/KO for Paul and Moody is a fair deal and might help them given Kerr's preference for vets (all coaches prefer vets but you know what I mean).
So when those pieces are failing, when do you actually significantly change from what has worked? At the end of the day you just got to hope Green/Thompson/Wiggins pick it up. Not like the alternatives have a high ceiling to win this year.