Branding and content are very closely related within a business. There’s always the possibility of making the two work together better, even if you think your business has really cracked it. Anything that affects your brand will also have a bearing on the content you are creating, and vice versa – both are entirely to do with the perception of your business to the outside world, so they’re intrinsically linked.
It is helpful for businesses to think of all content under the general umbrella of brand. It is part of your identity, and the things you’re writing about, discussing and promoting will all have a bearing on your business and how people perceive it. You should think carefully about whether you’re going to have a branding manager working on content too, or whether you’ll have content managers and copywriters who take care of this side of the brand for you as well.