No, he never had a complete team. There's a difference. If the defense was good for the year, the offensive line was just average and became atrocious when it mattered (The 2011 season and the Minnesota playoff game). The best team he had was 2007, but the offense was hamstrung by TO being injured in the playoffs and they lost to the eventual SB champions. 2014 was a good team (he had an MVP-like season), but the defense was average and the totality of the team not as good as 2007 relatively speaking, but then the team was screwed over by the worst overturned non-reception call I've ever witnessed. 2016 could've been a possibility to be his best team ever but then he was injured and Dak stepped in. And for most of his career his head coach was the red-headed stepchild Garrett who is barely an average coach if that, and Jerry still being hands on in everything without Will McClay until near the end of his career.
The context of Romo's play within the teams and the organizational decisions significantly matter since it's always been an organizational effort to win a SB.