Team Practices generally helps other groups be more productive. Our daily work might help other teams meet their core goals, or to do strategic work. Our quarterly goals tend to involve projects outside the scope of our engagement with teams, such as (going meta here) helping teams get to the point where they can track, report on, and forecast based on, work categorizations like "core" and "strategic".
I haven't thought of an example of our non-engagement work that itself would be considered "core". Does anyone have ideas? Is it OK that certain teams might not do any core work (because it would all be strategic), or perhaps in some other case, might do only core work, and no strategic work?