(Lin-Manuel Miranda. Image: Flickr/Steve Jurvetso) Marketers can take a cue from Broadway in time for a new mass market The year was 2009. As the story goes, the White House invited a 30-year-old Broadway actor to perform lines from his current production, but this request was a little different than usual. According to NPR, the invitation also gave Lin-Manuel Miranda the option of performing anything else he might want in “the American tradition.”…