Seriously, right?
The Cowboys are retooling. They are resetting their cap situation. They feel they went "all in" last season (signing most of our FA's, adding Cooks, Gilmore etc) and it didn't change the outcome (first round playoff loss).
I won't say they are completely rebuilding, but they are resetting their cap situation.
They want to play the young guys and see what they have.
I doubt we add vets like Campbell and Gilmore. They would cost money we don't want to spend and also block the development of players the Cowboys want to see play.
Give up on this Gilmore thing. He's not coming back here. I liked him too, but when we signed Lewis it signaled our plans, and drafting Carson put the Gilmore question to rest for good. Your other suggestions aren't bad, Burks and a RB, but the right deals would have to be there.