Cracker Barrel’s stock has been in freefall over the past week after its CEO admitted the biscuits-and-gravy chain is “just not as relevant” as it used to be — and failed to show investors a convincing plan to revamp its restaurants.The 54-year-old roadside eatery — with its Old Country Store and down-home menu of chicken fried steak, grits and hash brown casserole — has been steadily losing customers for the past decade. Its senior clientele, among its most loyal, fled during the pandemic and many have sin ...