1. Denver Broncos
The Denver Broncos endured one of the wackiest, rollercoaster-like seasons of recent memory last year, thanks to Tim Tebow, who led the team to several miraculous, last-minute comeback victories. But when the Broncos had the opportunity to acquire Peyton Manning, they couldn't pass it up, giving Tebow a one-way ticket to Jet-land. So the most curious question going into the 2012 NFL season is: how will Peyton Manning do as the Broncos' QB after a full year away from the gridiron? For those who are wondering, no, the Broncos and Colts do not face off against each other this season (surely, the NFL schedule makers are kicking themselves).