This sounds like the closest thing to a win-win that I've heard proposed yet, because of what BRK ends up with. Assuming - big if - the Lakers are willing to light even more future draft capital on fire in order to upgrade Russ to Irving and try to extend their Lebron/Davis window of contention. I wouldn't do so if I were LAL, because I can't see that team even making the WCF, but I'm not facing the same internal political calculations they are, so who knows.
That said, the idea of Westbrook getting traded and then bought out, being free to sign with any contender for the pro-rated minimum, would be a VERY interesting situation to see play out. Would you want to pay Russell Westbrook whatever portion of his $47M? Absolutely not. Would you want him on your roster for $600k for the rest of the season, in whatever role you decide for him? Totally different question. Shit, I'd really think about it for us, and tell myself that Mazzulla can get him to stop taking jumpers.