I believe that Joe Mixon would be a perfect match for the Seahawks. He's got the size the Seahawks like, is fast, and can catch the ball out of the backfield. Plus, he's probably going to be there in the late 2nd round or 3rd round. His NFL draft profile has him most like Le'Veon Bell. While he's not a Marshawn Lynch, he could still put a scare into defenses. Just like Bell does. That's the trait the Seahawks need to revitalize their running game. A back that puts the fear into defenses.
Joe Mixon, RB, Oklahoma, NFL draft profile -
http://www.nfl.com/draft/2017/profiles/joe-mixon?id=2557976
As for his character issues, yes he needs to clean that up but Frank Clark had issues coming out of college. Frank has been able to stay clean since. Maybe Mixon would do the same. Mixon's talents, like Clark, is off the charts for his respective position.
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