Checked the prediction for Rodgers on NFL.com fantasy.
Rodgers has a lot of upside, but should only be trusted as a No. 2 Fantasy QB to open the season.
I don't think that Rodgers is a good start in week 1 at all.
The only advantage he has is going against a pass D that ranked in the lower third last year.
However, given his OL issues and the bolstered Vikings D, I wouldn't start him unless the only other QB I had was TJack. ;)
BPandG, I also don't think that it is safe to assume that GB will be playing from behind.
Certainly not enough to warrant changing their offensive game plan. I doubt that there will be more than a TD difference in points all game.
However, that being said, GB is a pass first offense, especially considering that Grant misses all of training camp and preseason (and has yet to practice).