...SEO is not as difficult as many people say.
You obviously know little about search engine optimization. It is not easy. Link schemes are easy but SEO requires skill when in competitive environments. Maybe you are confusing the skillsets between linking strategists with those demanded from search engine optimizers.
SEO requires precision and attention to detail. It requires advance HTML coding capabilities. It requires the ability to properly assess and eliminate keyphrase competitors. In search engine optimization, you have to know a great deal about marketing, the psychology of the qualified visitor and alot more about web design and how to optimize the various web page components. SEOs need to understand the search engines and offer both the Internet visitor and the search engine a rewarding presentation. No, SEO is not easy. Link building is easy.