Slice founder and CEO Ilir Sela joins CBS News' Jill Schlesinger to discuss how the mobile and online ordering and marketing platform serving local pizzerias across the country competes with bigger named competitors like Grubhub and DoorDash. Founded in 2010, Sela shares how he combined his tech background and his family's three-generations of pizza making. He also explains why pizzerias are seeing a surge in business during the coronavirus pandemic. Plus, hear how he got the founders of Seamless to invest in Slice by connecting via Twitter.