It looks like D. Murray will be back in the lineup next week and the Cowboys desperately need a running game. D. Brown looks like he'll be back fully from his injury next week, but he'll probably split carries with V. Ballard. So yeah, I'd take the trade.
What about this scenario?
I give: Rob Gronkowski and James Jones OR Torrey Smith
I get: Demaryius Thomas and Jason Witten
My WR group would then be upgraded to Marques Colston, Demaryius Thomas, and James Jones (Danny Amendola and Titus Young on the bench).
My TE position would be weakened, but Witten is getting a boat-load of targets. Opinions, advice?