. >> joining us now is jonathan coomey. been working on data centers since the late 1990's?yes, that's right. >> you know this inside and out but why focus on ebay? >> there have been many companies who have tried to use information technology to become more efficient but not before now wanted to talk about it. when i approached ebay last the, i was teaching at stanford business school and was open to having my students come in and interview their managers about how they transform their it i.t. operations to become vastly more efficient. >> the energy consumptions of data centers is like two percent nationwide. andhat will not get smaller we are pushing toward more use of these data centers or enterprise computing as well as for your consumer application. when you access data on your smart phone, you are using a data center. >> how did ebay compare to other companies? >> we looked at the way that they design their management. i will talk about that because the differences are important. when you do this from a strategic perspective, you need to think about the whole system.