#4 Humberto Carrillo
Humberto Carrillo was one of WWE's top babyfaces on RAW not too long ago. The athletic Superstar started off strong on RAW, where he got matches against top Superstars such as Seth Rollins.
He then got to work against Andrade and Angel Garza, while working alongside one of WWE's most seasoned Superstars, Rey Mysterio.
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However, we've seen less of Carrillo in recent weeks on RAW, and he has been pushed down to Main Event where he is taking on other underutilized Superstars. RAW can look to bring the fan-favorite back and give him a good mid-card run against the returning Jinder Mahal who will be looking for a pure babyface to compete against.
Carrillo is an accomplished Superstar who, I believe, shouldn't have to compete on Main Event. He'd be much better suited as a regular on RAW A mid-card feud between Carrillo and Mahal can do good for both the Superstars. It would ensure the duo remain in the eyes of the fans and could get a push to challenge for the secondary title down the line.