Content Writing is yet another influential part of your site which should not be ignored.
A good content will always be in demand no matter what day and age, if one has researched avidly and put it forth correctly with right SEO friendly keywords, his/her site is already taken steps on way of its success.
Original content, backed with powerful writing equals much more attention than unoriginal copy pasted nonsense that you may find floating anywhere and combined with power SEO tagging skills added subtly in content, one can surely say that he has set the right foundations for his rise.
A decent knowledge of wordpress. CSS and HTML might be needed