Norris and Moss are beasts.
Jaso, Lowire, Crisp, and Cespedes are quality players.
Their bullpen is sick.
Even without their top two pitchers going into the year (Parker and Griffin), they're still getting great performances from starting pitchers.
They're a good team. At this point I think it's foolish to call them lucky. Beane just does an amazing job with that team year in and year out.