#4 Change Roman Reigns' entire presentation
Moving on to some of the things WWE really needs to do for Roman Reigns to enjoy a highly successful main event run, the company should alter their presentation of The Big Dog. If his new attitude at SummerSlam is any indication, now is as likely a time as ever for Reigns to have a complete aesthetic makeover.
His failure to change over time has been a constant source of criticism. Reigns looks in great shape physically, so WWE would be very smart if they update his gear to show off more of his impressive physique. He does not need the Shield vest, especially since the group will never get back together.
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It is also utterly baffling that Reigns retained everything else of The Shield after their initial break-up in 2014. The Big Dog needs a new theme song, something that will not remind fans of what he used to be (or who he used to team with).
This would eradicate a lot of the stigma towards Roman Reigns, which has happened due to some questionable booking decisions, while making him feel completely fresh and different. This is a new Big Dog, and we need more tangible evidence that he has changed.