Yes. Content management is standard fare.
One of the most frequent complaints I have heard from site owners over the years is that they find the relationship with their webmaster to be cumbersome, because they cannot get those presumably simple updates completed in a reasonably short period of time. From a webmaster’s perspective, I can tell you that this is frustrating as well.
Traditionally, webmasters built static sites with static content and content updates were infrequent, but competition on the web has become very intense, it has become a very crowded place, so search engines have had to develop complex algorithms to help them establish how a site should be ranked, and therefore placed on their query results pages.
If you are a site owner, then you know that a sure fire way to improve your placement on a results page is to consistently feed your site, fresh, relevant content. Unfortunately, many sites, both new and old, are still statically designed. It's this static design that's often the problem. Sometimes making a simple change to a static web page, like adding a few new sentences, can blow that page apart. The webmaster is going to have to rebuild that page, so it works with its new content. This is frustrating for both the webmaster and the customer because it takes hours to complete simple updates that should take minutes.
My sites are dynamic: wholesale changes can be completed with a few button clicks. The system is intuitive, and it's fairly easy to learn, so I can hand over content management and administrative responsibilities with minimal training.