The Pistons are in an advantageous position being 20-5, having a strong deep roster, young developing players and some good assets. It's not like they need to get all in now, they have a team that can be good for a long time if they play their cards right. Of course there's something to be said for competitive windows being shorter in the new second apron NBA but there's no real pressure to force a big trade now.
With that said, I do think they will need to make a big trade at some point for that final piece, their Sheed trade so to speak, to put them in title contention but that time isn't yet IMO.