Order Reprints Text size CEO Doug McMillon says there is more change now happening at Walmart than at any other time in his 30 years there. Mark Wilson/Getty Images While 2020 may be gone, the events of last year will continue to cast a shadow over retail. Walmart says leaders will have to embrace new ideas. Walmart (ticker: WMT) CEO Doug McMillon spoke on Wednesday at the all-virtual CES to discuss how the company reacted to the Covid-19 pandemic and the changes it expects. He said that Walmart might not be the first name that comes to mind in technology, the company has always been a leader in integrating tech into its supply chain. The pandemic only accelerated its involvement with tech ranging from data analytics to robotics.