Yes, it can.

Perhaps the most obvious use for this is to randomly rotate 'banners' when your home page is loaded, focusing on the most current or important areas of your site.

There is no reason why the same technology shouldn't be applied to other areas of a web site - say, varying summary articles on a page so that the appearance of topical, constantly varying items of interest is presented!

See What our clients say on our home page, for example.