#4 Apollo Crews
Apollo Crews was rushed to the main-roster and given a mini-push. Crews couldn't do much during the push as he lacked a proper gimmick or a personality, and eventually fell down the hierarchy.
Crews is an insanely talented individual who can do a Shooting Star Press and can lift three-hundred pounders for a Gorilla Press! He is similar to what Brock Lesnar was back in the day but lacks the aggression and persona.
Fans drowned out a popular wrestler with 'She's a racist' chants recently
A move away to indies will help Crews become a much better superstar!
#3 Luke Harper
Luke Harper is probably the most talented "big-man" in WWE. He has got the personality, the looks and the in-ring skills to become a top guy but for some reason has never broken through the glass ceiling.
Untimely injuries have never helped his case, but Harper remains a massively talented wrestler who should be getting much more recognition for this talent.
And perhaps a move to another circuit would be a good start.