Anyone else a bit concerned about our offense?

Reports coming out of camp are saying that the defense is winning most of the battles. Brees was picked off twice today and overall QBs have been throwing a ton of them. They were sluggish agains NE who has one of the worst defenses in the league (granted its pre season) Is it the Oline that has not gelled yet? Do you notice pressure coming from Grubbs side? Or is just a testament to how much our defense has improved?