They weren't. Starting with Zack's injury/stinger or whatever it was in camp, it took them a while to get going. Even then, they were up-and-down for a bit. Like that ATL game where Randle came out and took it to them and then we collapsed at halftime.
Overall, though, they're a very good group, and they ended up earning their keep last season when it was all said and done.
What happened to the OL during training camp was well documented, and that's why I can't understand why posters, that are here for every single day of the off-season, will comment on the "offense not looking crisp" at the beginning of the year as some sort of indictment against Jason's coaching or Romo's play.
The entire OL was injured last camp. Thankfully, nothing serious. But at one point, Travis was the only healthy starter, taking snaps with Weems and Berny. You only want to spend a Weekend with Berny.
They didn't really play much, if at all, together in camp. Cohesion is a big part of OL play, we all know that. Lack of playing time together and Martin's stinger being a little worse than advertised, and it should be of little surprise to anyone that they had to catch some steam first.