“When you create new content, you have to earn people’s attention, when you optimize your content you are making sure that you are taking full advantage of the attention you have already earned.”
Small company blogs have a hard time competing with larger brands that have a much higher saturation point within the market. If you can’t create more content to compete, go back through your old stuff and optimize it. You may have missed important SEO or optimization opportunities the first go around. This is your chance to make the old stuff work harder for you today.