Oh how the mighty have fallen, if Brady wasn't hurt this line would be -15, he's a great QB but he ain't worth 10+ points. I think we're forgetting here what kind of team SF actually is, I'll be generous here, mediocre. They play in probably the worst div in football and have a power rating that ranks them 28th in the league and have played the 3rd easiest sos to date. So far this season they are 2-2 and have been drilled by NO and Az, winning barley in Seattle and kicking the shit out of Detroit, not a great resume.
I know NE hasn't looked like world beaters up to this point and their record is nothing to jump up and down about but they are adjusting to life after TB and are still one of the elite teams in the NFL. I think people are thinking SF is the "sharp" side here, I think they're making a huge mistake, don't let recent events sway your thinking. NE is a TD better than SF without question at this point, -3 is a gift.