"A-ha" moment: The difference between CS and CM

In diagrammatic form, this is how I’m trying to get my head around the inter-relationship between CM and CS..until I’m persuaded otherwise. It really depends on scale I suppose. If you’re a Dow30  company, then management, governance, reuse etc of content becomes critical to productivity and alignment of message across all touchpoints. But if you’re a small outfit, stories that resonate…that reach people…that touch hearts…that’s what’s going to make the difference to you, not so much ensuring all content conforms to X styleguide and Y brand voice….

Further to the excellent thread on defining Content Strategy, the fact that ”Content Strategy" and "Content Marketing Strategy" are often used interchangeably on the web was confusing to me.
The diagram attempts to illustrate my understanding that there are often disparate “silos” of content spread throughout an organization. This often leads to content being needlessly re-created many times, when existing content could be simply re-purposed and re-used. The over-arching Content Strategy connects and controls enterprise-wide content and encompasses both the “management, planning, governance,” criteria per Kristina Halvorson’s vision of Content strategy with the “credibility, trustworthiness, transparency, audience” filters.
Under this model, Content Marketing Strategy would reside in the Marketing group and leverage content from across the enterprise to “drive profitable customer action” (per Professor Lavine’s lecture), but would be governed, managed, filtered, etc., by the overall Content Strategy.