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No player has experienced a more precipitous fall from pre-fantasy football draft grace than Amari Cooper has. Only 23 years-old and entering his third season after two straight 1,000-yard campaigns to start his career, Cooper's ceiling was assumed to be sky high for 2017.

We got to see that ceiling back in Week 7 when Copper absolutely torched the Kansas City Chiefs' secondary for 11 catches, 210 yards, and 2 touchdowns. But that one game against the Chiefs accounts for 42% of his entire receiving yardage output on the season, showcasing how devastatingly low his floor has been.

Furthermore, it's impossible to blame all of Cooper's ineffectiveness on the Oakland Raiders' offense as a whole. At numberFire, we go beyond analyzing traditional box score stats to quantify a player's on-field effectiveness through our signature player performance metric, Net Expected Points (NEP). NEP measures a player's contribution to their team in terms of their output over expectation, based on down-and-distance data. To learn more about NEP, check out our Michael Crabtree and Jared Cook have each proven more productive in terms of efficiency, as measured by Reception NEP per target, and consistency, as measured by Reception Success Rate, which is the percentage of catches that contribute positive NEP.

To be sure, the Dede Westbrook, and don't look back.