NFL free agency: Raiders still can find more gems to improve roster

Josh Schrock
NBC Sports BayArea

The NFL free-agent frenzy is going, giving fans and media a much-needed distraction from the coronavirus outbreak that has frozen the rest of the sports world. 

Ever since the legal tampering window opened Monday, the Raiders have been doing all they can to improve their team, especially on the defensive side of the ball. The Silver and Black have agreed to sign linebackers Cory Littleton and Nick Kwiatkoski, safety Jeff Heath, cornerback Eli Apple, edge rusher Carl Nassib and defensive tackle Maliek Collins. They also agreed to sign quarterback Marcus Mariota and tight end Jason Witten. 

The numbers on the contracts have not officially been released, but with eight players already added, it's safe to say the Raiders likely are close to done. 

But if the Raiders do still have moves to make, there are a number of free agents left on the market. Many of them could help the Raiders out -- if the price is right. 

Here are five free agents the Raiders should look at to round out their class.

Breshad Perriman, WR

The Raiders have yet to address their biggest hole on offense yet during free agency -- wide receiver. 

Hunter Renfrow and Tyrell Williams are back, as is tight end Darren Waller. Still, the offensive arsenal needs a facelift. 

Perriman is coming off a stellar season for the Tampa Bay Buccaneers where he filled in nicely down the stretch for the injured Mike Evans and Chris Godwin. 

The 2015 first-round draft pick dropped just one pass last season while catching 36 passes for 645 yards and six touchdowns. He's a young, big receiver who showed he still has the potential to be great if put in the right position. 

Prince Amukamara, CB

Adding Apple is a good low-risk addition, but the Raiders need more than one cornerback. Even with Trayvon Mullen is cemented as the No. 1 corner, the Raiders would be wise to bring in another corner to compete with Apple for the other starting job.

Amukamara had a down 2019 by his standards, allowing 36 catches for 515 yards and two touchdowns with the Chicago Bears. He also logged only four passes defensed and zero interceptions in 2019. He has had a productive career up until last season, so he could be a cheaper option willing to come in and try to resuscitate his career. 

Damon Harrison, DL

New defensive line coach Rod Marinelli got his guy in Collins. But the Raiders still could use more push from the interior. 

Damon Harrison was a dominant run-stopper from 2015 through 2018. Last year, however, was not his year as he earned just a 66.7 run defense grade from PFF while playing for the Detroit Lions. 

The 31-year-old still should be able to give a team some solid production in the middle of a defense. While he might not be what he was at his peak, Harrison still is more than capable of being a presence in the middle. 

Derek Wolfe, DL

The former Denver Bronco has been a great run-stopper since switching to a three-technique in 2015. 

Wolfe's pass-rushing has been inconsistent during his career, but he ranked 25th in pass-rush grade, per PFF, in 2019. He can help stop the run and provide pass-rush help from the interior, something the Raiders sorely lacked in 2019. 

Wolfe would be a solid addition to the Raiders' growing DL rotation, and he might come on the cheaper side. 

[RELATED: Report: Why Brady chose Bucs over Raiders, Chargers]

Cameron Wake, EDGE

Does Wake have anything left in the tank? The former All-Pro no longer is the elite pass-rusher he used to be. 

That being said, at 38, he could be valuable to the Raiders in two ways. He could be a good rotational pass-rusher with a high floor, who also could serve as a mentor to Clelin Ferrell and Maxx Crosby. 

Wake's best days are behind him, but he could be valuable in a rotational role.

NFL free agency: Raiders still can find more gems to improve roster originally appeared on NBC Sports Bay Area

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