I don't see a problem with this deal. It's about market value for an elite rebounder with an improving offensive game on a team that sorely needs rebounding out of its 4/5 spots.
This Nets team will give us our most significant challenge in the Atlantic that we've seen in the KG era. Excellent rebounding out of the 2-3-4 spots, great scoring out of the 1, 2 and 5 spots...defense will be an issue though, but I could see this team being on par with, say, the Clippers.