According to Yahoo!:" (Oakland Raiders owner Al) Davis’ attempt to right the ship with big spending has led to a great deal of second-guessing. Even more, his reaction to the critics seemed particularly out of character to the previously quoted league source." Yahoo! quotes the source as saying: “Al never cared what other owners thought before. Never. His attitude was always, ‘Screw them, I know better.’ It sounds like he has doubt now.”
A humble opinion here says that the Raiders will be the surprise team of the season.