I will offer a couple of thoughts on that, and then Mr. Waddell may wish to add more.
As you said, there have been a number of individuals and organizations that have identified examples on the east coast as things that the west coast should implement, owner-operator and fleet separation being the two most commonly cited examples. In our initial assessments, we have looked at those and recognized that to take those steps would not be very simple. It's for the reasons that you identified, in that there are existing arrangements that we would need to take account of.
I think those are the most commonly cited examples and the ones that seem, I think, most important or among the most important to a number of people who are looking for change. I think our initial assessment is that it may be possible but it would be complicated, and we would be making significant changes to the management approach that's been in place for some time.
I'll invite my colleague to add to that, if he wishes.