The Saints actually are in a rebuilding mode this year, with 20-some-odd new players, lots of them rookies or very young players. That's part of why things are so awkward and unrefined. But Brees is getting a bit long in the tooth, and new players or no, he was making some terrible throws today. Many more than he would have made on balance in previous years.
I never follow the Saints much, but I figured they at least started a small rebuild mode after the Graham and Stills trades. Did not know they had that many new players though. Will be interesting to see if they keep Brees past '16...