Should Raiders target Sheldon Richardson, Muhammad Wilkerson?
/ Raiders

By Paul GutierrezESPN Staff Writer

ALAMEDA, Calif. -- Did Jon Gruden tip his hand a tad at last week's NFL combine by saying Bruce Irvin is at his best as an edge rusher, rather than as an outside linebacker in coverage, when it comes to the Oakland Raiders' plans in the draft and free agency?

If so, that could mean a position switch for Irvin, which would open up a need for the Raiders at outside linebacker.

And beyond that, Gruden also said Irvin could use "some help so he can do the things that he does the best, more often."

That might mean adding a pass-rushing interior defensive lineman.

And somewhere Khalil Mack -- who eats a steady diet of double- and triple-teams every game -- is smiling, too.

Because while defensive tackle Justin Ellis -- a fourth-round draft pick of the Raiders and 2014 draft classmate of Mack -- is solid against the run, he is also a free agent. And he only has 1/2 sack in his 60-game career, which came in last season's opener at Tennessee. Plus, last year's third-round pick, Eddie Vanderdoes, is coming off surgery to repair a torn ACL and did not have a sack in 16 games, 13 of which he...

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