The Pacers dump Obi Toppin and his massive contract to have money so that they are able to make some moves in free agency. They also use this pick to get younger and add depth to their shooting gaurd position by drafting Cody Williams. For the pelicans on the other hand, they make this trade because they dont need this pick. The reason they don't need their pick is because they are a top playoff contender already. This team trades three players in order to take in Toppin's large contract.