The most successful SEO is when on page optimisation, link building, keywords and marketing are all used together properly.

You guys heard of Dollar Razor Club?
They had an amazing pitch video which went viral and got them untold thousands of links.

But their home page wasn't optimised and they didn't include any keyword links in their press releases.

As a result they don't rank 1st for Razors. But they could have!

All they needed was just a little bit of SEO.