Originally Posted by Brutus
I don't think walking Arias is a no-brainer, but I think it's the preferred choice for three reasons:
1. As mentioned, it forces the Giants to hit for Romo,
2. It uses up the Giants last position player
3. It sets up a force out in the event of a groundball where you can tag the runner/base potentially if you bobble it
It also sets up a passed ball scoring a run, a walk scoring a run, a HBP scoring a run, and many other ways of scoring a run.
IMO they played it right, just didn't execute the defense there.