Businesses focused on increasing sales through content marketing should look at traditional e-commerce metrics including click-through-rate from a product-page to check-out and completion rates at the check-out. Altogether, these form a conversion funnel. Moreover, to better understand customers' buying habits, they should look at other engagement metrics like time spent per page, number of product-page visits per user, and re-engagement.
Content marketing also provides additional benefits in that it supports other digital marketing channels. It provides additional content for social media marketing and contributes to SEO efforts by generating natural inbound links and building up good content on your website that gets found in search engines. In fact, for many companies the bulk of their SEO efforts should be focused on content marketing.
At HubSpot, we use ... well, we use HubSpot at HubSpot. It comes with a Content Management System (CMS), which allows you to create and publish content quickly in a format that's web-friendly. Whether you use HubSpot or another CMS, you need some CMS so your content marketing team can easily set up a blog, add blog posts, and add website pages without having to get help from IT or developers.
Read Joe Pulizzi's excellent book Epic Content Marketing. I started reading it after I wrote this post and it confirmed and expanded what I already knew about content marketing, with much more detail than I could ever go into here. Something Pulizzi emphasizes which I originally left out was the importance of focusing on producing mobile-friendly content, since smartphones are becoming the dominant way in which most of our customers access content. Also read Michael Hyatt's Platform, mentioned above. Frequent websites like those of Content Marketing Institute, Ragan, Copyblogger, Michael Hyatt, and Gary Vaynerchuk and sign up for their email newsletters. It won't take you long to become not just familiar with content marketing, but an expert.
Your specific needs might vary -- for instance, perhaps you need subject matter expertise in your writers, or coding experience from your long-form content creators. Or perhaps your titles differ, and your "content creators" are actually "content strategists", or your "social media manager" is really a "specialist." Make edits as you see fit, but these frameworks should be helpful in getting you started if this is your first time hiring for any of these positions.