Chief, I have a pretty good idea where you're going with this, and it starts with Duran going 2 innings last night when there wasn't really a good reason to. Plus its compounded by the fact that we probably have no one else in the bullpen rotation with the ability and mindset to close, which is an organizational concern.
Given that, and given Jax' past history in a closing role, I have to wonder why Rocco thought Jax was the best option, before the game even started.