Romo also had the benefit of playing with a veteran OLine that had lots of stability and experience playing together from 2006-2009. Not a lot of games missed by Flozell, Gurode, Davis, and Colombo. Romo never had an OL that was breaking in 2-3 new starters like what we've seen this year until that OL got too old and they had to rebuild it in 2011.
Dak has the personality and character that you want from a young QB to improve. Unfortunately, I don't trust this coaching staff to be able to continue to develop him. Remember, David Lee was the assistant who helped develop Romo early on in his career. I highly doubt Wade Wilson and Garrett have what it takes to help Dak.