This obviously was not what Arenado had in mind for the first season after he signed a long-term extension to stay with the Colorado Rockies. And while it seems obvious on the surface that the problem lies with the pitching, Arenado offers a more nuanced position on things here.
For example, Arenado observes that at times it seemed like the pitching was bad when the hitting was good, but then the hitting would be bad when the pitching was good. That was definitely something that felt true as the Rockies plummeted down the standings. There are other interesting nuggets in this article from Aniello Piro, among them that Arenado acknowledges the gap between the Rockies and the “really good teams.