Five players that could still make an impact in 2016 and should be picked up sooner rather than later:
1. John Sullivan, CCut by the Minnesota VikingsIn 2013, John Sullivan was as good as any center in the game, and at that point, had three straight seasons graded among the top three centers in the league. Coming off knee problems, his 2014 season was less impressive, and he missed the entire 2015 season with back issues, but at only 31 years old, chances are that Sullivan can still be a very effective player. His issue in Minnesota was that Joe Berger—the player that replaced him at center in 2015—played at an All-Pro level in his stead, surrendering just one sack all season and ending the year with a PFF grade of 88.0, trailing only Cowboys C Travis Frederick. Sullivan was going to have his work cut out for him winning back his job anyway, but Minnesota bringing on board Tony Sparano to the coaching staff—who has history with Berger as a player in Miami—seemed to seal his fate. Sullivan hasn’t enjoyed the best preseason of his career, earning poor grades in the 44 snaps he has played so far, so his best football may still be some time away, but for any team in need of a center, the chance of acquiring a potential All-Pro heading into September should prove a very attractive proposition. Sullivan may not be ready to hit the ground running at that level, but he should be able to upgrade several situations around the league.
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