Naw. They've been bad since he returned, but he's clearly not fully healthy and you're still dealing with a tiny sample size. The starters were quite good post trade deadline last year and the bench is much better with Ish and Leuer.
Plus, I think his value to the Pistons is >>> his trade value. I like Ish, but not as a full-time starter, and I don't see them getting a great replacement via trade.
I have no clue when he'll be back to 100%, but until he is, the adjustments should come with coaching. Reggie should be off the ball more often and the offense should flow more through KCP and Tobias running the pick and roll. Especially Tobias.