Here are the five positions of need for the Raiders as they approach the NFL draft:

Offensive tackle

Khalif Barnes is eligible for free agency, and the Raiders aren't sure if second-year player Tony Bergstrom is a long-term solution at right offensive tackle.

Defensive tackle

Richard Seymour is gone. Tommy Kelly might be a salary-cap casualty. Regardless, the Raiders need big-time help in the middle of their defensive line.

Defensive end

The Raiders are in sore need of a reliable pass-rusher off the edge. There aren't any promising candidates on the roster.

Cornerback

It's likely that the starting cornerbacks for the Raiders next season aren't even on the roster yet. This position has to be addressed.

Wide receiver

The Raiders still don't have a No. 1 receiver. It's also possible that Darrius Heyward-Bey won't be back next season unless he accepts a massive pay cut.