#5 Humberto Carrillo
Humberto Carrillo has been pushed ever since joining RAW during the Draft. He clearly has the in-ring talent to hang with the big kids but he has failed to connect with a personality. I'm sure he has one but it's been hard to see him as anything other than a babyface. Carrillo cannot cut lengthy promos and has mainly been embroiled with the likes of Andrade over the last few months.
He was even in the US Championship picture before the Draft. He faced AJ Styles for the title on multiple occasions and also battled Seth Rollins before he became the Monday Night Messiah. Talent was never the problem. Being a part of a three-hour show that has more time to flush characters out, however, seems to be an issue.
A former WWE writer just went after JBL for his comments HERE
There has been the angle of the current face of Lucha Libre now that Mysterio is on his downturn. But with Zelina Vega able to speak for Andrade and his cousin Angel Garza (to a lesser extent), he's had trouble fighting back verbally.
SmackDown is only two hours but there are still similarities as both shows have promos, interviews and backstage vignettes. There is less time to mess around especially with WWE having to answer to FOX. Carrillo is better suited to a show more focused on in-ring talent like his and the likes of Daniel Bryan, Cesaro and Drew Gulak. He wouldn't need to talk as much and he would literally add a fresh face to the mid-card.