09/04/2012 11:27 am ET Updated Sep 05, 2012

2012 NFL Preview: Six Must-Watch Quarterback Situations

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The NFL has become a 'pass first' league -- and a 'pass second' league as well, at this point. And as we enter the 2012 season, quarterback controversies and question marks abound. Denver now features No. 18, Washington and Indy have the pleasure of Robert Griffin III and Andrew Luck, respectively. And Tim Tebow, of course, is knocking on the proverbial door of Mark Sanchez in the land of Gang Green.

2012 NFL Preview: Six Must-Watch Quarterback Situations

This is Part II of a three-part NFL preview. Read Parts I and III for breakout stars and key storylines.

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