I think the Lakers have done pretty well to at least set themselves up to have options and flexibility without sacrificing their young core. (Hart, Kuzma, Ingram, Lonzo)
The Deng/Mosgov contracts are essentially almost indefensible and a prime reason the Lakers were right to strip Buss (son not Jeanie) of basketball operations. I also like having a former super agent with deep ties to the league, players, and the salary cap as a part of their GM team now. They have managed to minimize that contract damage and even got rid of IMHO a bad seed (no way he can likely ever be a leader) in Russell going to the Nets.
The Lakers won't likely get KD, but they should target him, Kawhi, and also Klay Thompson (very unlikely too, but he would feast maybe as well or better as with GS with LeBron and Lonzo as play makers on the same team) next year. I wouldn't go after Butler personally, I think he is a pretty good player but not worth the max salary slot he would command for their specific roster going forward. If you imagine a Lakers death lineup in key stretches of Lonzo, KCP/Hart, Kawhi, Ingram/Kuzma, and LeBron that's a pretty good overall lineup with the ability to switch well, good passers, and a lot of speed, length, and athleticism everywhere. Offensively, not as sure.