I think the defense will be at least fine, if not pretty good this year. Dom can work with players and this year I think he has enough.

The real key will be the O-line in the first 4-6 games. Not just because Tretter is out, but because under Campen they always suck the first 4-6 games, look ok (often with extra protection) for the next 6-8 and then look pretty decent the last 4 games on the season. If the o-line doesn't suck to start the season, watch out NFC.