Berrios is a key. To realistically win a WS, he has to become an ace. But if he does, we still need someone start game 2 at Yankee Stadium. I don't think anyone here genuinely expected them to get Cole or Strasburg. But to completely whiff on the entire next tier is unacceptable.
It definitely wouldn’t be ideal to start the season without Bumgarner or Ryu. That said, there are a lot of ways to win. I don’t really care how they improve the rotation as long as they get it done.