21. Ryan Tannehill, Dolphins
The most-sacked QB in the league (58 times last season!) is poised to take a big step forward this season, provided that his retooled offensive line can keep him upright. Tannehill has the tools and the weapons to be very dangerous, and has a good chance to flourish under the tutelage of new offensive coordinator Bill Lazor, who helped to unleash the beast in Nick Foles last year as part of the Chip Kelly machine in Philadelphia. (Chris Trotman/Getty Photo)
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