SEO sits in the office chair and yells, “Create more relevant content!”, and Content Marketing responds. “Don’t’ worry, already on it!”. SEO is like the executive that makes demands and content marketing is like an efficient worker, fulfilling those demands to utmost precision.
In a Venn diagram, you will see these two concepts overlapping each other and sharing a great common portion. Any new idea presented by a marketer is solely based on the excellent execution of both SEO and Content Marketing.