The Oakland Raiders have turned over a sizable portion of their linebacker corps with many of them playing on the outside.

But the Raiders are going to continue featuring the 4-3 as their base.

"We're basing out of a 4-3, just like we did last year," Dennis Allen said Saturday. "But we're going to have the ability to have some 3-4 looks, and being able to implement those things and try to make them as simple as we can for our players, as well as try to make it complicated for the offense."

The Raiders may ultimately play the 4-3 on obvious running downs and then switch to 3-4 on passing downs.