Magazines Obschaya Tetrad № 4 (80) 2020 Ambassador Francis O’Donnell, Olesya Zakharova, Ursula von der Leyen, Andreas Bummel, Antoniou Guterres, Ivan Kurilla, Andrei Kolesnikov, Alexander Sogomonov, Michael Wolff, Andrei Kurapov Challenges for leadership in an era of recovery from the COVID-19 crisis