I think they'll get much different years from Padillia and Millwood, as well as solid seasons from Kinsler and Young, and MVP consideration worthy numbers from Hamilton. They'll also get 2003-2006 Hank Blalock back. When I look at the Athletics' pitching staff, I see a pitching staff no better than Texas', and possibly the worst outfield in baseball, on both sides of the ball.
In Texas, I expect big things from catcher, second base, shortstop, third base, center field, and MAYBE first base.
In Oakland, I expect big things from first base, and maybe catcher.