Heat close in on Jimmy Butler deal, with Richardson to 76ers as part of package

For the Heat, it was a matter of attempting to keep up with a massive salary-cap space race in the Eastern Conference that has Kyrie Irving and Kevin Durant relocating to the Brooklyn Nets, the Celtics signing Kemba Walker, the Orlando Magic re-signing Nikola Vucevic and Terrance Ross and then adding Al Farouq-Aminu, and the Indiana Pacers loading up with Malcolm Brogdon and Jeremy Lamb.