I think the SP injuries, along with the continued lack of consistent production at the plate, will turn this team into sellers by the deadline.
I had always said that the Twins shouldn't trade any of the Lopez, Ober, Ryan, Buxton, Correa, and Lewis group. I would be close to taking Lewis off that list and adding Jeffers. Not that Jeffers is a world-beater, but solid catchers are not as easy to come by. Everyone else can be had for the right price (including Wallner, Jax, and Duran)
Any move the Twins make, buy or sell, will be (at best) a salary-neutral move. Expect more picking over of the DFA list.