OAKLAND -- Looking for some semblance of a positive note to glean from the Raiders' 38-24 shellacking at the hands, and feet, of Denver?Michael Bush, starting in place of the injured Darren McFadden, rushed for 96 yards on 19 carries and caught a pair of passes for 33 yards, including an 11-yard touchdown reception."Yeah, I felt good," Bush said. "We were spreading the defense out so they couldn't stack the box. We had a good gameplan going in. We just fell short at the end."This offense has so many weapons. We just got to stick to what we were doing in the first half. A lot of things opened up. We made some big plays in the end in the passing game. Jacoby (Ford) had some big catches. Denarius Moore had some big catches. We just fell short today."And then some.Some suggest Bush did not carry the ball enough, especially when the Raiders were trying to build on a 24-14 third-quarter lead."We lost today because we hurt ourselves," Bush said. "The turnovers and the penalties. We had it going. You saw in the first half, we were moving the ball, making plays. Then, I can't tell you. It's just a crazy game. That's how it is."