I'd say no, just because I feel like we've become a very balanced team. I do think there has been a let down on defense... especially in terms of run defense. Last years defense was one of the best I've ever seen.
This year our defense gives up a lot of yards (especially against better offenses) but not a lot of points. They are capable adjusting to whatever their opponent gives them and they come up with big plays when it matters most.
What makes us a better team at the end of the day is that our offense has become capable of scoring TDs against any opponent. Not to mention red-zone offense and 3rd down % has improved.