/** Loads all managers */
 private void loadManagers() {
   for (Manager manager : managers) {
     load(manager, getSavesFile(manager.getSavesFileName()));
   }
 }
 /** Saves all managers */
 private void saveManagers() {
   for (Manager manager : managers) {
     save(manager, getSavesFile(manager.getSavesFileName()));
   }
 }