If you think that a store e-commerce business is the answer, you end up thinking that a population of less than a million items is enough, and you end up thinking that you don't need an e-commerce marketplace, and you end up thinking other things.

We're an 'And' company, we're people and tech, we're stores and e-commerce, we're innovation and execution.

So growing ecommerce in the marketplace is key to being able to attract more advertisers. What we can do that some other people can't do is we can connect the dot between an ad you may have paid for digitally and a subsequent purchase in a physical store so that you can see the ad actually worked. So it too is an omni business for us.

I think what we've seen happen so far is that as we've applied technology for the picking process in the store, for example, is that job composition has changed but we have about the same number of people.

We love basket businesses, the Supercenter is a basket business, Sam's Club is a big basket business. We want to build an e-commerce business that's a basket business, not just a spear fishing exercise.

It was always the plan to bring things together, but just like the structure, it needed to be separate for a while for good reasons. We couldn't pick at store level the full Supercenter for a while. It's a lot harder to receive an e-commerce order and pick a toy at Christmas on time than it is to pick the strawberries every day, because you know where they are.