Examining NFL's endangered species

Does the game's evolution mean certain types of players are becoming obsolete?

Originally Published: October 2, 2013
By Jeffri Chadiha | ESPN.com

The hard reality about the NFL, just as in life, is that change is inevitable. Everybody is always looking for an edge, a way to push the game forward, and that is one reason the sport never gets old. On the other hand, innovation always leads to displacement. The league progresses and somebody suffers as a result. That's especially true today.

At no time in recent memory have we seen the league change as much as it has over the past decade. The spread offense arrived. The Wildcat, the ...

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