Well because its you I will respond once more.
I think with most of those teams you will see a dominant defense and/or running game that could bail the QB out in most cases, granted I could not tell you if that was the case with Williams, McMAhon, or Plunkett, but I believe that was key in Getting, Ben, Elli, Simms, and Griese to their wins.
So, I think you put Romo on those team and he gets the Superbowls, if you put them on our team they don't have the Superbowls. Hopefully our D will be better and I know if we stay healthy our running game will be and maybe that will be enough depending on the D. I do think if you put Aikman, Montana, Brady, Staubach, and others at that level on this team then we get to the Superbowl. I grew up watching Aikman, I am forever spoiled and maybe thats a big part of it. IDK, you do have a good point though in that it is entirely possible for a QB at or below Romo's level to win a Superbowl, I just don't see it happening with this team. I guess I might have well as said will never win a Superbowl with this defense...IDK, I always have the hope that Romo will put it together and learn not to make mistakes and reach that level (that he is so close to) where he could take this team with its flaws to the SB. I digress, too much time on the forum i guess...Good point the Hos.