What did Davis do before he got here? Why don't you answer a simple question? So Romo was sacked 24 times in 2006 when he started in WEEK 7 and Bledsoe started and the OL play was getting blasted before he was pulled, nor was Leonard Davis even here is proof of your argument? What happened in 2008, 2009 and 2010 as far as sacks were and this OL started playing together consistently?
How many times was Drew Bledsoe being sacked before he was pulled?
So Romo had no influence on OL play when in 2005, articles such as this abounded:
http://www.dallascowboys.com/news/2005/12/05/cowboys-looking-correct-o-line-struggles
Where is this heralded all-pro offensive line Romo walked into that you speak of like Dak's?