My reasoning is the same as the trade with Paul George, but minus the picks because dallas probably wants to just rebuild around Cooper.

Dallas don't get any picks because of Davis's health. This return isn't even that bad for Davis. Dallas get a true Center so Gafford or Lively can be roaming shot blockers. Dallas also gets another top pick player to develop in Patrick Williams. Patrick isn't bad, he's just peaked in Chicago too soon. I don't know the Mavericks minute rotation, but I believe Vucevic and Patrick could slide in perfectly

Bulls don't get any picks because for some reason the front office hates getting them