The answer is quite simple. The award does not always go to the player with the best statistics. It is not the Most Impressive Award, or the Who-Put-Up-the-Best-Numbers Trophy. This award is meant for the most valuable player in the National Football League.
If you don't believe me, then just ask Drew Brees about the 2008 and 2009 NFL MVP award. Both of those years the award went to Colts' quarterback Peyton Manning, even though Brees statistically outperformed Manning.
In 2008, Manning threw for 4,002 yards and completed 66.8 percent of passes. He tossed 27 touchdowns and 12 interceptions to create a 95.0 quarterback rating. However, Brees threw for 5,069 yards, 34 touchdowns, 17 interceptions and completed 65 percent of his passes. Brees also posted a 96.2 quarterback rating in 2008. Many say that Brees did not win the award because his team finished 8-8 and did not make the playoffs. Then what about the 2009 season?
In 2009, Brees threw for 4,388 yards and set an NFL record for completion percentage, completing 70.6 percent of his passes. Brees threw 34 touchdowns and only 11 interceptions to finish the season with a 109.6 quarterback rating. Manning threw for more yards at 4,500, but was lower in every other statistical category. He completed 68.8 percent of his passes and threw 33 touchdowns and 16 interceptions to post a 99.9 quarterback rating.
The reason that Brees did not win the MVP award in either of those seasons, despite outperforming Manning, is because he was not the most valuable player in the NFL. Brees and Manning both had very good statistical years, but Manning meant more to his team in 2008 and 2009. Without Manning the Colts would not have been near as good as they were in those two years. That is value.
This creates the question: Which player means more to their team? If both of these quarterbacks went down, then what team would suffer more?
Brees has been more valuable to the Saints than Rodgers has been to the Packers in the 2011 season.
If Brees were to go down with an injury, then the Saints season would be lost. The Packers would probably struggle without Rodgers, but they would not be as worse off as the Saints.