I would lean towards heavily selling this deadline. The team has a fair amount of vets that likely won't be back next year. I think it's time to see what we have in our first wave of young guys that are in AAA or on the big league team. No reason to hang onto Hoskins, Civale, Quintana or Cortes.
I would make most of the bullpen guys available too if the price is right, Megill, Koenig, Mears especially.
Let's call up EMJ, Black, Seigler, CRod and see if they will be part of the future or not.
While moving those guys, I would also consider adding another infielder that has team control beyond this season. Urias and Lowe would be possibilities.
It's probably not likely to see this much movement, but the roster definitely needs a major re-tooling.