The best part about trading Down for Brown with the Kings
Is that the likelihood that it comes back to haunt the Clippers is low. Even if Acuff becomes his best self, it's the Kings! They aren't going to build a good team around him. Plus there's also the chance that he doesn't become his best self because he's thrust into a lead role right away and never has an incentive to improve on defense.
Then the Clippers can get Brown who I think has a higher ceiling than Acuff, but if his back is bad or he just doesn't work out, at least you got some assets.
(Sorry Kings fans, I do hope Vivek sells some day or learns to let basketball people do basketball things, but sometime after you give the Clippers some assets for Acuff. And I don't root for any young player to not reach their potential...except for Luka and that's only because he's now on the Lakers and Lakers hate trumps morals.)