There's no way they give up our picks. They're too valuable. I could see us getting the lesser of ours or the Rockets picks, which isn't great. Houston is having an OKC type season where this is all about gaining experience more than looking to make big changes. I highly doubt they'd offer up the contracts for a KD or Booker in a trade. VanVleet is their worst deal and I believe that expires this offseason, which makes a deal involving it nonexistent.
They totally lack high end offense players, Green is an inefficient chucker. But they're loaded to the gills with defenders, they have the contract ballast (Van Vleet's contract has a team option) to make a trade work and they, allegedly, got our picks from the Nets for exactly this purpose.
Maybe they've seen our ineptness and will want to hang on to those picks, but if they go down in this series, unable to crack 90 points per game, then they will need to get an offensive weapon to make the next leap.
I doubt we could get all 3 picks, they're probably the most valuable draft capitol in the league, but we have what they need and they have what we need. A match seems like a decent bet... so long as they lose and lose ugly.