Fitz is a good buy-low right now, especially in a PPR format. See what they need in return for him first. Then I'd check in on Bowe. To be fair, other than Murray/Gore, I wouldn't say you have a huge stable of RBs to trade from unless they don't realize Forte/Fred Jackson will eventually come back. Not a big Turner fan myself. I'd see if he was interested in Turner first.
With CJ going down today also, that option goes away. He needs a RB, I think he's got FJax and Jaamal Charles. I advertised him getting CJ as a comfort thing for the future (if FJax were to get hurt again).
I'd look at trading Turner, I agree his value is minimal right now, but he's still getting a fair share of red zone touches. Probably gonna see how he looks today and go from there.