#2 WWE Superstar King Corbin (needs a new gimmick)
We are way past the time when King Corbin looked menacing with his "lone wolf" persona. His transition to an authority figure turned him into someone who just wasn't cut out for a main event run. Corbin retired Kurt Angle at WWE WrestleMania 35, but the win didn't do him any favors in regards to his standing on the main roster.
A victory in the WWE King of the Ring tournament led to him becoming King Corbin, which was followed by a feud with Roman Reigns that just felt flat. The rivalry kept on going for months on end, with no end in sight. The King Corbin gimmick is almost a year old and has already run its course. Corbin would benefit from a gimmick change, and turning into a vicious heel who acts his size, instead of looking downright goofy while wearing a crown, will do wonders for his career.
A former WWE writer just went after JBL for his comments HERE
#1 WWE Universal Champion Roman Reigns (doesn't need a new gimmick)
This one is as obvious as it can get. WWE Universal Champion Roman Reigns is currently the biggest heel in the company. He made his return to WWE at SummerSlam 2020 and hinted that he had embraced his dark side. Reigns then aligned with Paul Heyman in one of the biggest surprises in recent memory and defeated The Fiend and Braun Strowman to win the WWE Universal title.
WWE has a goldmine of storylines in their hands with Reigns as a ruthless heel. His current demeanor is something fans had been wanting to see for a long time. WWE has finally listened and given Roman a much-needed character change. Expect to see the new persona of Roman Reigns wreck havoc for a long time to come, as this is one character that's not going anywhere.