Reason Pistons do trade: Lots of question marks for the team next season. I doubt they will attract many FAs. Zeller could take over Monroe's spot and play next to Drummond. Or come off the bench. Turner be the teams SF or come off the bench. Roster is kind of empty for next season.
I think the problem here is that Detroit's entire issue right now is that they have two centers - one starting at center, and one TRYING to start at PF.
Replace Monroe and you get the same problem - just a worse, less skilled version of it.
Would probably make more sense for Detroit if was Sully or Olynyk being sent out in Zeller's place. Olynyk would probably be an outstanding fit next to Drummond's rebounding and rim protection.
Not sure if I'd give up Olynyk and two picks for #8 though...
It's intriguing, I'll give you that.