Peyton Manning was this offseason's biggest free agent signing and was picked up by the Denver Broncos to turn the franchise into a Super Bowl contender. But after a second Super Bowl loss to the New York Giants, Brady needs to prove he can lead the New England Patriots back to a championship. Brady is under far more pressure to win games now.
The Patriots are a team built to win a championship. Brady is surrounded by loads of offensive talent like tight ends Rob Gronkowski and Aaron Hernandez, plus receivers Wes Welker and Brandon Lloyd.
Denver signed Manning but hasn't done a whole lot of work surrounding him with elite talent. He has receivers Demaryius Thomas and Eric Decker, but the rest of the offense is lacking top-level playmakers.
Defensively the Patriots reloaded through the NFL draft, selecting edge rusher Chandler Jones and all-purpose linebacker Dont'a Hightower. Those two should bolster a defensive unit that allowed 6,577 yards in 2011, the second-worst total in the NFL.
The bottom line is that Brady took his team to Super Bowl XLVI and lost. That was the second time he has gone to the Big Game and failed to bring home a championship. In both instances the Patriots had many chances to put the game away and secure a title and just couldn't get it done.
Brady has the type of team around him that is ready to make a run at another Super Bowl title. Meanwhile, Manning's roster is solid but not yet at the level of a championship contender. Both guys will be expected to win in 2012, but Brady will be expected to bring home a championship.
This season Brady has to lead the Patriots back to the Super Bowl to prove he hasn't lost it.