A news report (https://tinyurl.com/y55ypho3) described six ways that supply chains can build in resilience to deal with the pandemic during the early days when suppliers in China were impacted. These include adjusting shipment modes, using alternate designs, building up inventory, leveraging existing supplier capabilities etc. How quickly can each of these alternatives be leveraged to build in resilience ? Do these suggestions imply dual sourcing ? Will costs increase as a result ?