#3 Kassius Ohno
The main reason why Ohno is included here is because he was originally supposed to be a member of the group alongside Rollins and Ambrose. CM Punk picked the three members from NXT but he was overruled when it came to the third member. He wanted Ohno and management wanted Reigns. We all know who won that one.
While Ohno did leave and come back, he was remarkably heavier. If he wore different gear, I think he'd come across a lot better. But despite the gear, he's still very talented and hard-hitting. His move to NXT UK helped switch things up for him because it was apparent that he wasn't going to be winning a title in NXT.
His time might have passed to be included in a group like a new Shield. His inclusion on this list was necessary due to the fact that his history in the company could have been completely different had he been involved in the original lineup.