Chargers first-round pick Omarion Hampton figures to be a big piece of a two-pronged attack alongside free-agent signee Najee Harris.

The Raiders used to own one of the NFL’s most well-defined identities, an outlaw, physical brand that produced three Super Bowl championship teams.

The Raiders offense was held back last year by poor quarterback play, a dismal running game and a lack of explosiveness. They averaged just 18.2 points per game, the fourth-fewest in the NFL. Their failures cost coach Antonio Pierce and general manager Tom Telesco their jobs after a 4-13 campaign.