My colleague Mr. Rogge may want to add to this as well.
We have what we think is a pretty good mix. We have terminals that are partially automated. We think it's worked out quite well. We have a good relationship with our unions and we have a model that we think is quite successful., so we're not particularly looking for or pushing for greater automation. It varies from terminal to terminal, but it seems to have worked well.
Greg, I don't know if you have anything you want to add.