Complex sentence: In addition Siegal has been a coach and Technical Commissioner for the International Baseball Federation where she has coached for the World Children's Team USA, in which that team went on to wing gold at the Women's Baseball World Cup.
Split into simpler sentences: In addition Siegal has been a coach and Technical Commissioner for the International Baseball Federation where she has coached for the World Children's Team USA. This team went on to win gold at the Women's Baseball World Cup.