By Ethan Lyon , Senior Writer How loud can you yell? How outrageous can you be? These are questions marketers have been asking for nearly a century. This paradigm shifted when Doyle Dane Bernbach injected intelligence into advertising in the 1960s with their revolutionary “ Lemon ” print ad for Volkswagen. For them, it wasn’t about how loud you can yell, it was about how interesting you are. Since the 1960s, there has been a blend of intelligent campaigns, but far outweighed by yelling matc