Just to pursue that slightly, typically when you do a pilot you're trying to say that these are the purposes of our pilot and this is how we would determine whether or not it's successful.
What are the determinants that would make you say that this has or hasn't been a successful pilot? I'm not looking for a number. I'm looking for the factors, the determinants, the things that would allow you to determine success. Do you have any of that in place?