Last week's announcement by Levi Jeans that thousands of jobs around the globe have to go implies today's teenagers are not as enamoured with the company's 501s as they used to be.So what is the marketing strategy now, the Margin wonders? One spokesman for the company, was reported to have said that the company now hoped to market its jeans to "previously untapped markets".It is understood he was referring to those over the age of 40 and beyond. The most famous jeans in the world will no longer be the preserve of young stylish teens, but more seasoned campaigners, who no doubt have no problems fitting into them.