Technical SEO is so many things -- canonicals, parameters, hreflang, schema, robots.txt. Crawlable code and appropriate markup are part of an SEO's job, but they aren't where the competitive advantage lies. Google says content and links are the top ranking factors. So where should an SEO spend 80% of their time to beat the competition? An SEO's top priority should be content. Stories from Jeff Bezos and WaPo, Rand Fishkin and Pricenomics illustrate the case.