I would just reiterate that as our network becomes more fluid and you can move cars faster and faster, that creates its own capacity.
I would just piggyback on what Mike said. Working with your customers to get an advance forecast or an advance commitment on traffic is really important because it takes nine months to train somebody to be a conductor on our railway. And it takes six months, if not longer, to get rail cars. The more closely we work with our customers and the longer term we do it in advance, that's how we're able, from a forward-planning perspective, to meet the needs that are coming.
As you've said, when we have a great winter and we can turn the fleet faster, that creates its own capacity in itself.