Barcelona have lost their way without coach Tito Vilanova and recent performances have been littered with defensive errors and marked by an uncharacteristic lack of cutting edge up front .
Coach Tito Vilanova is in New York recovering from a December throat operation .
Barcelona have lost their way without coach Tito Vilanova , who is in New York recovering from a December throat operation , and recent performances have been littered with defensive errors and marked by an uncharacteristic lack of cutting edge up front .