The Core vs Strategic distinction is baked into the annual planning process for all teams (see even the examples at the bottom of the page that includes Operations). As I'm not sure if there is a separate mandate from management for TPG to work with audience facing specific teams on this I decided not to edit these two sentences:
WMF management has asked the Team Practices Group (TPG) to work with audience-facing product teams to start tracking "core" and "strategic" work. As part of annual planning efforts, aligning all of our work to core and strategic labels will help us communicate our work externally, and to improve our internal budget and strategic planning processes.
Help rewording that appreciated :)