If you have spent any time watching Boko Haram, you would know that Shekau is truly insane and his version of Islam is even too radical for Islamic State, a mixture of part witch doctor/part voodoo/part radical Islam. He is usually screaming, surrounded by a posse, and at least one tank, this last video is a totally new Shekau, calm, cool collective.Someone is directing his image. My thought is he is a wild card that Islamic State cannot afford to ally with unless they rebrand him or get rid of him entirely.