Google now use over 200 signals in their algorithm for scoring and last year, there were over 540 quality improvements to their search algorithm alone.
Web authors help users find what they are looking for and make the process of taking an action easier for them. An SEO consultant uses their expertise to determine the source of traffic, the types of keywords they are using, the needs of the visitors, and how deals are closed. The person in charge of your SEO needs should therefore be familiar with the principles of a good SEO strategy.
The best ranking position for a website should ideally be on the first page, but preferably in the top three of the first page.