At risk of sounding bitter, this is really not the best advice to share with any group of startup entrepreneurs who might believe it and stake their business model on it. As with many of us here, I've struggled with this issue for years, and the reality is that Google is a saturated distribution channel that is horrible at identifying quality content that is not heavily branded or pushed in mainstream media.
There are ways to tweak the signals, but it usually means having someone working fulltime on spreading word, and smaller teams building good sites often have better things to do than linkbait blogging (something I believe many of us would personally define as poor quality content). And even then this approach simply does not work in highly competitive fields where there is literally a decade of competition over search queries at this point, and competition from highly-funded startups and incumbents.