Thomas Schlieck had previously been employed as goalkeeper coordinator at Schalke 04 and had before that been employed for twelve years as goalkeeping coach at Arminia Bielefeld.
Thomas Schlieck sebelumnya dipekerjakan sebagai koordinator kiper di Schalke 04 dan sebelumnya dipekerjakan selama 12 tahun sebagai pelatih kiper di Arminia Bielefeld.