The interview process is all about differentiation, and a question like this shows the interviewers that you are determined to be a rock star. Most companies have many folks who are perfectly happy to learn how to do the basic tasks of their job, and then sit back and collect a paycheck. What they are looking for is someone who is driven to make things better, who won't just be satisfied with the status quo. By not only identifying yourself as a big time horse, but making sure that the company will give room to graze, you are guaranteed to stand out.