SAVANNAH, Georgia — Right after Labor Day weekend, less than two weeks after International Paper announced it would close Savannah and Riceboro containerboard facilities, Sheron Morgan was on the ground at the Savannah mill. As she spoke in front of a group of employees, going through resources like training programs and resume help, Morgan, the executive director of WorkSource Coastal in Savannah, said the mood in the room was heavy. This wasn’t a surprise. After all, Morgan said, their lives had just been upended, and now someone with a job was standing in front of them, telling them they would make it through. …But over the next month, as Morgan, her team and partners from other workforce development organizations set up shop in the plant’s conference room, the employee’s mood softened. …But even though many resources were available, the plant closing was a major disruption for the workers and the broader Lowcountry economy.