The document summarizes the findings of a study conducted by IBM that interviewed over 1,700 chief marketing officers from around the world. The study found that CMOs see four main challenges ahead: dealing with the explosion of data, the rise of social media, the proliferation of new channels and devices, and shifting consumer demographics. However, CMOs feel underprepared to handle the impact of these changes, especially the data explosion and rise of social media. To succeed, CMOs will need to focus on understanding individual customers, fostering meaningful customer relationships, and quantifying the financial impact of their marketing efforts.