Top chefs Frank Oehler, Mike Süsser, Andreas Schweiger and Ole Plogstedt are stepping up to clean up culinary crisis areas. They give restaurateurs and their kitchens a new perspective. Their mission: to save good taste. Their demeanor: cool, fair and energetic. They arrive in German restaurants when the schnitzel is too soft, the service is too slow or the kitchen is a mess. They are the rescue s...