Complex sentence: Partnering with Gust Karras and Pat O'Connor, he renamed the promotion Heart of America Sports Attractions, and took his place on the board of the National Wrestling Alliance (NWA).
Split into simpler sentences: Partnering with Gust Karras and Pat O'Connor, he renamed the promotion Heart of America Sports Attractions. He then took his place on the board of the National Wrestling Alliance (NWA).