EXCLUSIVE CONTENT Get ESPN+ Trade grades: Who wins the Mavericks-Heat McRoberts deal?Kevin Pelton grades the Mavericks-Heat trade that included Josh McRoberts. Wesley Hitt/Getty ImagesKevin Pelton, ESPN Senior WriterJul 7, 2017, 02:40 AMClose Co-author, Pro Basketball Prospectus series Formerly a consultant with the Indiana Pacers Developed WARP rating and SCHOENE systemFollow on XEmailThe dealMavericks get: Forward Josh McRoberts, second-round pickHeat get: Center AJ Hammons