#2 The Club
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The Club came into WWE with much momentum. Once upon a time, they were allied with AJ Styles and in a way, in the most important program on the show too (#BeatUpJohnCena). Since then, their stock has dropped. That is, until they allied with Finn Balor.
There's a lot more fuel in the engine of Gallows and Anderson now. They seem like a reinvigorated unit, and more importantly, are babyfaces. They could have a great program with a heel team like The Bar.
If hypothetically, The Club were to win the tag team championships, they'd be a viable team to challenge The Shield, when Ambrose does return. Right now, they do not have the equity to do so. Everyone in The Shield is far too big a star.
Did a WWE Hall of Famer predict John Cena's heelish ways long ago? More details HERE.