6. Samoa Joe
Samoa Joe came to WWE with a history of being an indie sensation and one of TNA's biggest superstars. That would have instantly put a bad taste in Vince McMahon's mouth, but it was Joe's involvement in Tyson Kidd's neck injury that really hurt his perception. It was a Raw dark match, and Joe's Muscle Buster was executed on Kidd. The impact caused a neck injury, although it was described as a freak thing and Kidd didn't blame Joe. Regardless, Joe hasn't been involved with Raw since. He's on NXT and doesn't look to be coming to the main roster any time soon. With his TNA and indie background, as well as the involvement in Kidd's injury, he can be considered a long-term sitter in McMahon's doghouse.