One of the biggest areas of change in the last decade is related to associates that work in our stores, picking orders for delivery and pickup for our customers. And we have something north of 200,000 people doing that job, and yet we have about the same (total) number of people working in Walmart U.S.

As it relates to brick-and-mortar, we've seen it all and done it all. We operate around the world in different formats, different brands. We've got large stores, small stores, all these different formats. So we know that space pretty well, but the e-commerce business was different.

The stores are an asset, and they have a great assortment in them and they're close to people. Being within 10 miles of 90% of America is a huge advantage, especially with fresh food at a good price. But we must also, if you think long-term and you think about what the company wants to accomplish, you must have a big and important first-party e-commerce business, and you must have a marketplace, and the things that go along with the marketplace.

I think most Americans probably don't know what a tech makes that helps take care of our stores and clubs and that we can help them learn how to be a tech. The same thing's true for our drivers. So we have a need to get the word out so that people know there are some great jobs.

Other tasks and other jobs changed, which enabled us to create new jobs that paid more and have fewer of the older jobs that went away. I hope what happens as we lead through this is that there will be pluses and minuses, but the net ends up being even more people because we have more ideas of how to grow.

The sales floor probably gets more people. And what we're seeing in supply chain is that it's basically the same number of people with just a whole lot more productivity, but their jobs change.