Raiders coach Tom Cable, who employed the same "stay the course" strategy throughout an assault investigation that he uses while coaching, said Friday he was pleased to put the legal matter behind him.

"The whole experience was very interesting to me, very humbling to me," Cable said. "I'm thankful the authorities did the thoroughness they did in terms of getting all the facts. ... My family and friends supported me through it. I never let it become a distraction because I had a lot of faith."

Napa County District Attorney Gary Lieberstein said Thursday there wasn't sufficient evidence to charge Cable with assaulting defensive assistant Randy Hanson during an Aug. 5 training camp incident.

"It's amazing what happens," Cable told reporters. "I respect what you have to do, but it certainly got made out to be more than it needed to be."

When asked if he were considering a civil action against Hanson, Cable said his main concern was coaching football. He also said he declined to be interviewed by Napa police during the investigation because "if I do that, I'm getting involved. I become part of the turmoil, part of the issue, and it grows."

Defensive coordinator John Marshall, one of four assistants — Lionel Washington, Willie Brown and Hanson were the others — in the room with Cable on Aug. 5, said, "We're happy for Tom that it's off his back. It has never been an issue. It has never, ever been talked about at any staff

NFL commissioner Roger Goodell said in a radio interview the league isn't done with its own investigation under the its personal conduct policy.

"We're going to look at the decision a little bit more closely, make sure we get all the details and if we think there's merit, we will continue to pursue it," Goodell said. "I think one of the things we've learned is you've got to have the facts before you start making judgments, and we've been trying to follow that closely."