#4 The Revival
Dash Wilder and Scott Dawson made a name for themselves over on NXT where they were two-time NXT Tag Team Champions.
They were also the winners of the 2016 NXT year-end Match of the Year award due to their excellent two-out-of-three falls match against #DIY. The Revival also won the 2016 NXT year-end Tag Team of the Year award.
Unfortunately, The Revival's success from NXT hasn't translated onto the main roster at all. When the duo had made their Raw debut, they had defeated The New Day in a tag team match as they were clearly on the cusp of big things.
But instead, they have been used to make other tag teams look good, thus not being used to the best of their abilities.
It was also reported that after The Revival's match against The Lucha House Party on the 14th January 2019 episode of Raw, that Wilder and Dawson had also asked for their release from their WWE contracts.
This doesn't come as a shock to any wrestling fan, as AEW seem to be keen on bringing The Revival to their company for a dream rivalry with The Young Bucks.