Here's my issue. It's not so much scheme related as it is fear related regarding the defense failing in the playoffs. Frazier plays to win and will get aggressive in the regular season but in the playoffs he stays passive, paralyzed by fear that he is going to give up a big play and lose the game.
But instead he gives up constant easy long drives with little resistance.
Case in point? Played KC twice a in the regular season last two years, held them to 20 both games. Played them twice in the playoffs got smoked for 38 and 42 points.
Why? It's the same opponent and the same defensive players and the same scheme. What changed?
It's simple...the way he is calling the game and the unwillingness to take chances and be aggressive on D. This passiveness when games matter because he is too afraid to lose prevents him and us from winning.