I think the fact that the Bucs have an offense surprised the heck out of the Iggles, who, I suspect, weren't expecting the Bucs to mount much of an attack. But Gruden's a pretty smart guy, and the offense the Bucs ran -- a nice mix of runs and short- and medium passes -- kept the Eagles moving backwards most of the game. I think the Bucs should have some similar success against the Raiders, whose D has been so-so this year.
That said, watch the Raiders O. Did you see how little pass rush the Bucs line mustered at the end of the game? Sapp, Brooks, et. all were sucking wind in the fourth quarter when the Eagles went to a hurry-up offense. Imagine how little punch the Bucs D will have by the third quarter. The Raiders play a pretty up-tempo game, and I think they'll wear the Bucs D to nothing fairly quickly. And if the Bucs can't muster any pass rush, Gannon will eat them alive.
My pick: Raiders 31, Bucs 20.