It's no surprise that Drew Brees' arm is not what it used to be, and it's probably something he's going to continue to deal with. That being said, his stock was plummeting on the heels of a missed game and the gigantic unknown of what he was really capable of coming off an injury. He ended up being Week 4's top-scoring quarterback on Fleaflicker with 33 completions on 41 attempts, good for 359 yards and two touchdowns.
Be aware that the Saints were going against a Dallas Cowboys defense that was severely depleted, and lost middle linebacker Sean Lee during the game. The Saints get Philadelphia, Atlanta, Indianapolis, New York (Giants), and Tennessee next.
None of those secondaries are particularly scary, but it's worth mentioning that Brees looked bad against a poor Tampa Bay secondary. That was before he was diagnosed with the shoulder injury and took a week off though, and hopefully he does not need that much rest to be effective in Week 5. Confidence should be higher in Brees after this, and his stock's free-fall definitely re-routed upwards after Sunday night's victory over Dallas.