14. Marcus Mariota, Tennessee Titans
Marcus Mariota is one of the more confusing — if not frustrating — young quarterback prospects in the NFL, because he seems to be running in quicksand. In 2016, he battled injuries, and certainly advanced the trajectory of his career thanks to his 26 touchdown passes and 95.6 passer rating. But in 2017, he’s been dealing with nagging injuries, and has only thrown eight touchdown passes in nine games (versus 10 interceptions in that same span). His current passer rating for 79.9 for this year is well below the standard he set during the first two years of his career.
13. Dak Prescott, Dallas Cowboys
Dak Prescott is the NFL’s “chicken or the egg” quarterback: have the Dallas Cowboys been playing so well because Prescott so seamlessly took over the reigns from the now-retired Tony Romo? Or is it because the rest of the team is so good that Prescott can coast off the talents of others. Right now, there’s plenty of arguments to be made for the latter, as without running back Ezekiel Elliott and left tackle Tyron Smith, Prescott has looked overwhelmed and stressed, when he’s not running around trying to protect himself on the field.