Just Marketing International, better known as JMI, is the world's largest motorsports marketing agency and a major player in some of racing's biggest sponsorship deals the last decade. With the IndyCar season in the books, JMI's vice president of client services Mikel Hartman goes over some of the strongest gains the series made this year, the return of manufacturer competition, how the schedule will shake out for 2013, and the challenges the series needs to address into the new year.