Not a shock, Seattle by their nature has brought in guys under PC that have attitude issues and or think too highly of themselves, but have the organizational and team support system to handle that and instead of being distractions, the team is able channel that to make them play up to their talent abilities.
Sherman, Bennett, Lynch, Thomas, Frank Clark, Harvin etc, and why Seattle kicked tired 2 years ago on Kaepernick and Antonio Brown’s name always creeps up. A lot of other teams can not handle the person or personality like Seattle can (and obviously Seattle was done after that middle finger, which Carroll returned in the post game presser below), as the Ravens have found out here.