Gasol would make the Kings better.
So would Anthony Davis imo
"The Spanish KG who's almost 30 and arguably the best player in the world would be an upgrade." Triboy, I'm wondering why you're not ecstatic with Cousins. He's only 24. You wouldn't trade Smart for him because it looks like he tries harder and has the "potential" to be better, while in reality Cousins is arguably a better player than Gasol already and 6 years younger. Did you just throw out the next face of the league for safe measure? If Gasol is more of a "winner," why did you dislike Rondo? Since Smart has been on the team, they have a .380 winning percentage. Oh, he doesn't have the horses? Well, neither does Cousins. And don't try to argue that Rudy Gay is sufficient help, especially out West. This is made worse by the new owners' "Run and Gun and Oh What's Defense" style. Oh and by the way, the Pelicans are 9th in the West (tied for with OKC and out of the playoffs), and they have Jrue Holiday, Eric Gordon, Ryan Anderson, and Tyreke Evans, better than anything Cousins ever had. Heck, Omer Asik too. We get it that you don't like Cousins's attitude, but don't trash his talent or insult his skill.
Roy has already given the numbers, and I wouldn't want to copy and paste mindlessly, but Cousins makes one of, if not the, largest on-court differences in the league. The Kings were a playoff team, darling of the league, and playing great defense, but then Cousins gets hurt, they fire Malone, and decide to say "screw defense, let's try to be the Warriors without the shooters or depth." If you were a basketball player, would you really be going for that?