Why Ryan Dull, Fernando Rodriguez, and others can be huge to the A's season.
The rotation is still a question mark as we approach opening day and there's a good chance Felix Doubront will start the season as a starter. If he doesn't, there's a good chance he'll be pressed into starting duty at some point early on, meaning the A's are without their normal long/swing reliever.
Enter Ryan Dull, the man who will take the open roster spot if Doubront is indeed in the rotation. He's extremely young (around 12) and has succeeded at every minor league level plus Spring Training, where he's currently sporting an ERA of zero.