Upon asking a colleague what being a product manager meant to him, he gave me one of the best answers I've heard.
P. R. D
Product managers will recognize that this acronym refers to an oft used tool of Product Management known as a Product Requirements Doc. It's the way that a PM shares the details/spec of the product that needs to be built with all key stakeholders (especially engineers).
In this context, though, he came up with:
I love this. An elegant way of repurposing the acronym to neatly summarize what PMs should be focused on.