OAKLAND -- In the immediate aftermath of the Raiders' latest blowout loss, two of the three figures atop the team's totem pole retreated to the office of rookie coach Dennis Allen.And when Allen was done addressing the media about his team's 38-17 loss to New Orleans, he joined owner Mark Davis and general manager Reggie McKenzie.Some 20 minutes later, Davis emerged and spoke to the media en masse, really, for the first time since announcing McKenzie's hiring in January."I'm embarrassed," Davis said. "Pissed. Disappointed. And I take full responsibility for it."I'm patient, but I want to see progress. Not regression."On their current three-game losing streak to Tampa Bay, Baltimore and the Saints, the Raiders have been outscored by a combined 135-69, losing by an average score of 45-24. This after the Raiders sat at 3-4 with a home game against the Buccaneers on the horizon.Tampa Bay rookie running back Doug Martin, though, ran wild in Oakland with 251 yards rushing with TD runs of 45, 67 and 70 yards.Last week, the Ravens dropped 55 points on the Raiders, equaling an Oakland franchise-high for points allowed.Then came Sunday, when the Raiders simply looked lost in all three phases of the game, at the most inopportune times.Hence Davis' regression talk.In fact, Davis said he realized at the beginning of the year the Raiders did not have "Super Bowl talent," but he thought the team could make a run in the division and to the playoffs. The last three games have all but snuffed that thought out."We haven't been winning, and it hasn't been close," Davis said."I'm not happy. But nobody in this room, I think, is. I know they're going to fix it."Davis is five weeks removed from his second back surgery, which removed a cyst from his sciatic nerve."A pain in my ass," he said with a smile at his sense of literalism.The way his team has been playing of late is a figurative pain.So when he was asked if he planned on doing any shaking up of the team's offense, he smiled and shook his head in a negative fashion."That's not my (responsibility)," Davis said. "I have plenty of confidence in Carson Palmer."Davis did, however, take issue with the ESPN report this week that a few weeks back he had told running back Darren McFadden to speak up to the coaching staff about the plays he likes to run. Davis said he had actually told the coaching staff to ask McFadden what he wanted to run.Interestingly enough, shortly thereafter the Raiders began implementing power-blocking to run with the zone-blocking schemes behind which McFadden struggled before suffering a high-ankle sprain, and McFadden responded.