I wouldn't think of Romo as a player to stop others from happening, yes he is good (I had him in my team till he got injured), but he shouldn't be a game changer so I wouldn't take him to stop others from having him.
Looking at your qbs, i'm not a fan. Cutler is good (at times) and awful at others. Sanchez is exactly the same. But would you honestly say you'd start romo over either of them the week/2weeks after he comes back from injury. I know I wouldn't.
Personally I'd have a look in FA and see if Garrard, Freeman, Cassel, etc are available and take them