User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-77.136.87.178-20180506124948/@comment-34061653-20180506134451

Yeah Issei's team have the advantage in multiple areas but Rias functions better and Rias can operate her team better do to she's ahead of Issei in terms of leadership. If Ravel gets taken out them his team can't function properly which is a weakness that Rias could exploit so Issei needs to work on being a better King.