Complex sentence: In 1961, she made her Broadway debut in "How to Succeed in Business Without Really Trying", where she met choreographer Bob Fosse and his wife, Gwen Verdon, the show's dance captain.
Split into simpler sentences: In 1961, she made her Broadway debut in "How to Succeed in Business Without Really Trying". It was here that she first met choreographer Bob Fosse and his wife, Gwen Verdon, who was the show's dance captain.