“Immerse yourself in the data,” doesn’t mean “Be aware of the data,” or “Follow the reports.” It means “Really immerse yourself in the data,” by digging in and finding something new to learn each and every day. Make it a relentless habit for a very good reason—as the world changes, marketers can no longer wait a month, a week, or even a few days to know the ebb and flow of their business. There’s a new need to....