Such a trade would require parting with a significant haul, the likes of which I don't believe we could pull off. D-backs unlikely to assign much value to Eloy and Vaughn is someone we should try to retain (although I would include him if absolutely necessary). Guessing D-backs would want young, controllable players such as Crochet, Kelley, Burger, Collins although those 4 wouldn't be nearly enough. I agree we should pursue Marte but, to me, Varsho is the better fit if I had to choose because of his handedness and defensive versatility. He is an immediate upgrade at catcher (frees up Grandal to DH) and provides a primary option for either corner OF spot and backup to Robert in CF.