Not only is Paul Heyman an on-screen associate of WWE Universal Champion Roman Reigns, but as per a report from pwinsider.com, Heyman is also largely responsible for scripting much of what Reigns has been saying in his promos.
Heyman’s relationship with the Anoa’i family dating back to the 70s has helped him write the dialogue for Roman’s promo and WWE has previously leveraged Heyman’s expertise and talents in writing promos with other stars in the past too.
Michael Hayes has been involved extensively with producing many of Roman Reigns’ recent PPV matches and of course, Heyman would be involved there too.