Complex sentence: In 1997, the Open Society Institute (OSI) with Beth Breger, decided to replicate the Atlanta urban debate model and create the New York Urban Debate League (NYUDL) in partnership with Emory University, with Baker consulting on behalf of IMPACT.
Split into simpler sentences: In 1997, the Open Society Institute (OSI) with Beth Breger, decided to replicate the existing Atlanta urban debate model. Thus, the New York Urban Debate League (NYUDL) was created in partnership with Emory University and with Baker consulting on behalf of IMPACT.