I think Vick has the potential to do well given the offensive talent around him, but still knocking off rust and employing a simpler playbook for the next game or two as well as he adjusts his timing to these WRs in real time. I can see Vick employing his long ball very well to deliver the ball deep to a talented receiver corps, and to Miller deep up the seams. I doubt he is as mobile as he was, but I think he can be serviceable.
That said, I think Carr is settling in and has a shot at doing just as well, if not better as Vick, and has health and youth on his side. Raiders have scored 33 and 27 last two games and Carr has looked confident leading this offense to points.
To me, the question is actually are you holding Romo and willing to carry both Carr and Vick to play matchups? Or is the plan to jettison Carr in favor of Vick? I'd stay with the hot hand in Carr and let someone else take a gamble, even with the tangible upside Vick has.
As a Romo owner myself, I scrambled to pick up an additional two tier-3 QBs on wire, but am debating the wiseness of this decision of being that more limited in a short-bench league.