Once they start talking about the highly paid offensive line, it is time to shut them down. That offensive line no longer exists. Frederick retired. Smith is out. Collins is out. Now Looney, who was never paid highly anyway, is also out. They are on their 3rd string RT and C at this point. You cannot talk about the offense without mentioning those factors.
However, it is true the offense has turned the ball over 9 times in the last 3 games. Turning it over in the 1st half could be why they are being outscored in the first half. Clearly the turnovers need to stop and the defense needs to start getting take-aways. But I too pointed out that this "explosive" offense scored 0 points in the 2nd and 3rd quarter last week against the Browns when they needed to do something to keep the game close. It is not shocking they could move the ball after getting behind 41-14. The Browns pretty much went into prevent offense and defense the rest of the way.
When the Browns came out after half-time and scored a TD on their first possession the Cowboys offense had to score points when they got the ball. Instead, they went 3 and out, then failed on their second possession of the half when they failed to convert a 4th and 3. Then again, if the offense has to be perfect to win games because the defense cannot stop anyone your team pretty much stinks anyway.