Kammala jumla mai zuwa: Daga 2002 zuwa 2006 ya horar da 'yan wasan maza na kasar Holland, kuma tun daga 2009 ya horar da' yan wasan mata na kasar Holland. Tare da wannan tawagar ya cancanci zuwa
2011, 2013 da 2015 Gasar Kwallon hannu ta Mata ta Duniya. Ƙungiyar Holland ta kuma cancanci zuwa wasannin Olympics na 2016 inda suka gama 4th. Bayan wannan gasar, Groener ya bar kungiyar.