#2 Seth Rollins
Seth Rollins is one of WWE's top Superstars of the modern era, even hailed by many as the new "face of WWE" after he defeated Brock Lesnar for the Universal Championship at WrestleMania 35. But long before all this, even before he made his main roster debut as part of The Shield at Survivor Series 2012, he had a lot of backstage issues with many coaches thinking that he had "behavioral issues".
Rob Naylor, a former WWE writer revealed the following about the situation with Seth Rollins in NXT.
"Rollins’ issues were simply that he didn’t always listen precisely to his coaches. He’d be told not to do a move… and then do it. I know that while Rollins was in FCW and NXT, people felt at times he had ‘behavioral issues’. That was never the case in my estimation. Every coach on the staff was just as hungry at one time, so that was overblown. But he was on the bubble to be let go months prior to the Shield angle, based on the perception of some from the office.”
Speaking to WWE.com, Seth Rollins himself later revealed that he was so frustrated at that time and was close to being fired.
“I literally almost lost my job. I had been there for almost two years. I was very frustrated. I couldn’t get along with anyone. I thought I deserved more than I did."
Imagine if Seth Rollins was let go by WWE back then? We probably would not have gotten The Shield, would not have witnessed the amazing heel-run in 2015, the Kingslayer and Beastslayer storyline, and finally, we wouldn't have gotten the enlightenment from the Monday Night Messiah. Gosh, scary! Thankfully, Triple H talked sense into him and helped him realize his mistakes.