Process is one thing, but we also had to make system changes too.
If I think back three years ago, we did not have the visibility at the local level to give that kind of information. We're talking about 140,000 shipments a day. So as we recognized how important this was to our customers, we started to invest in the infrastructure and our IT system as well as training for our local yard operating people so that they recognized how important this was and so we could deliver that information in real time.