Today I was impressed with Grace. We really need a lefty or two going forward. He's almost exclusively a sinkerl / slider guy now, so maybe he needs a better change to start, but I would not mind seeing if he can be stretched out even more and maybe take some rotation turns. I would not mind seeing the occasional bullpen day, perhaps with Miller as the opener, or maybe Grace going early and Hellickson or Roark coming in after him like TB uses Andriese and Yarbrough. If there's anything to Fedde's injury, I would not mind seeing Solis back up as the 2d lefty in the pen and Grace given this sort of a shot.
In terms of trade, I think you need to do the groundwork to move just about anyone with an expiring contract at the deadline. That really does mean not just Madson but also Harper and Murphy. I am inclined to keep Gio at this point and offer him a QO, but if the offer is good enough, then the Grace thing I mentioned becomes something we'd have to do.
Frankly, if Robles is healthy and performing, then I would not hesitate to move Harper at the deadline if we are 8 out of the division. I don't even care if we are close to the second wild card because the play in is a craps shoot. We could win it with Scherzer or Strasburg, but it is still a tough road to make it out the divisional round. If Carter Kieboom tears up the Eastern League, then I'd look to cash out on Murphy, too. This reminds me of the NYY in 2016, when they moved McCann to make room for Sanchez, moved Chapman and Miller, brought in Clippard and some other pieces, and made a nice run to the wild card after that.