As of right now, I think it's more of a concern than a problem, if that makes sense. The second half offense, particularly in the last two games, has stalled. Yesterday, it produced 7 points. However, I have a feeling that this is because of the injuries to the O-Line. In the last two games the offense's undoing on the vast majority of their drives were because a slew of defenders were in Brady's face as he completed the third step in his dropback, much like the Super Bowl. Ryan even said yesterday that his defense didn't try to pressure Brady nearly as much in the first half as it did in the second half. If it did, this game would have been MUCH closer (we still would have won thanks to the Sanchize though).
In short, these offensive problems are fixed when Light and Neal return to the line-up. I blame the early season Jets loss on Brady not being fully recovered and the Broncos loss as being a mixture of the same excuse for Brady and just bad defense. The defense seemed to have fixed itself yesterday. Brady is obviously back, but cannot complete throws on his back. When Light and Neal return, this offense should roll for the entire 60 minutes.