Sites are always coming and going in the area, even those big enough for a 60k stadium. A few years back the site that is now Westfield Shopping Centre was available, that is now gone. A few years ago the Earls Court site was in use and was then bought by a housing development company, Battersea Power Station recently became an option that was not open to us 5 or so years ago. How do we not know that the Stewarts Lane Depot site won't become available soon for example?