I'm not sure that I give Romo as much time as you do.
And again, let me say that I don't dislike Lynch the player, I dislike the coaches we have and their inability to coach other quarterbacks. And that influences my opinion and desire to have the most pro-ready prospect I can get. In short, it's about the coaches, not the rookie.
I'll agree with part of your post. No one knows how much longer Romo will play. It might be 3 minutes into the next game or 5 to 6 more years. Neither are all that likely. The probability is that the realistic probability is 3 years plus or minus 1 year.
But arguably that is also true of most established QBs, including Brady, Brees, Rivers, Ruthlessraper, etc. It is a risk to fail to draft one. But there is also some element of risk in drafting a player and having him sit behind Romo for 5 years and have to give him a second huge contract without knowing if he can even play, and in reality you didn't get any performance out of him during his first contract. So it isn't really that clear cut. The Cowboys can **** themselves no matter which way they go.
I'm not really sure why you think the Cowboys didn't develop Romo. Romo has played his best football the past few years. He hasn't played for any other team, so who else do you think developed him?
We really haven't given the Cowboys a lot to work with at QB in terms of numbers, or talent to develop since Romo took over. I would say the jury is out on that one too. You might actually be right on that issue, but I don't see how you can arrive at that conclusion and have any confidence in that conclusion when we really haven't done much to try to develop one other than Romo.
As a side note, how much different would people's opinons be if Green Bay hadn't given Rodgers his chance and he got out of Green Bay (which he wanted to do at one point due to lack of opportunity) or if after being cut Farve won another Lombardi at another location after Green Bay cut him. Either were entirely possible.