The big box retailer is the new poster boy for losing control of your social media. Did a green intern bring down the better part of two huge companies (Home Depot and the agency who had their account), or does the blame  go higher? We may never know, but one thing’s for sure: in the age of social media, you can’t afford to be casual about who manages your online presence. Local companies can find new confidence in this continuing list of national retailers making huge public missteps. This one tweet affects not only Home Depot, but their suppliers, their (former) agency, College Football, and every company promoting it. Talk about ripple effects. How do you compete if you’re a smaller local firm? Stay close to your content, and find an agency you can trust to manage it. Lesson learned.