After months and months of depressing earnings reports, one question must be on every McDonald’s exec’s mind: How on earth can we turn things around? Same-store sales fell 2.2 percent globally and 4.6 percent in the U.S. in November, McDonald’s reported on Monday. The chain hasn’t seen any growth in U.S. sales for over a year. How can the fast-food chain pull itself out of the rapidly deepening rut? Here are four possible ways to turn things around.