FedEx CEO Fred Smith said his company is ready for Christmas 2021, predicting 100 million more shipments this holiday season compared to 2019 despite the global supply chain crisis, as long as it can hire the necessary number of employees to handle the volume.Smith appeared on CBS’ "Face the Nation" on Sunday and said FedEx is prepared for the major increase in shipments by leaning on e-commerce and making billions of dollars in investments, including modernizing its air fleet to use less energy and emit less carbon dioxide."We’re ready, assuming we can get the employees," the CEO said.Smith said the staffing shortage was due in part to the Delta variant of COVID-19 and expanded unemployment benefits.