[bmmccarthy]

A 2-week sprint backlog is not a roadmap. Yes, you can and should reprioritize every two weeks, but at a tactical level to better meet your long-term goals based on what you've learned since the last sprint.

A roadmap is a tool for communicating long-term direction and priorities. By making clear what the ultimate destination is, a roadmap helps you keep steady on the those priorities when doing your sprint planning. When sales says "we want this feature to close this deal," if it's something already on the roadmap, great. If it really doesn't fit with the long-term vision, you have a basis for saying no.

I wrote a book on this topic, Product Roadmaps Relaunched, Setting Direction While Embracing Uncertainty, for O'Reilly a couple of years back that goes into more detail: https://www.amazon.com/Product-Roadmaps-Relaunched-Direction...