There are times when you could sit back and say your brand is so well known, you no longer need to reinforce it. Take Roll Royce as an example. Apart from very remote jungle areas where television has yet to make any real impact, almost everyone on the planet associates Rolls with engineering excellence. Except, of course, nothing can ever be taken for granted. When one or two airplanes recently had troubles with their engines, it turned out Rolls was the manufacturer. So marketers were immediat...