The more I think about it the more Danzou's actions don't make any sense.
He wants to become Hokage but he's allow the leader of Akatsuki to completely destroy Konoha while he has supposedly capable people who could help stop it. Like one of his people asked him, isn't it better to go help.
Even if Danzou took over as Hokage, Konoha would be so weak that any substantial village could invade and completely destroy it at any given time. The loss of Kakashi and several other strong shinobi while fighting Pain means Konoha is losing its ability to take down Akatsuki.
The only way Danzou's intentions make sense to me is if he is under the orders of Madara. Here is why I think this is a possibility.
- Danzou is up there in age. If the Sandaime was trained by the Nidaime and Shodaime then somebody strong had to train Danzou.
- Danzou is military minded and thinks first and foremost about power. That sounds like Madara to me.
- He's perfectly willing to see someone sacrificed in order to have his goals achieved.
- He never made a move while Itachi was alive. We know that Itachi threatened both Danzou and Madara. Danzou was threatened about harming Sasuke and Madara with touching Konoha.
Admittedly I dont know how keeping Naruto away helps Madara's plans but it might make sense if Madara realized Naruto had the potential to kill Pain after he defeated Kakuzu.
And how was Danzou so sure it was Akatsuki's leader specifically and not just several Akatsuki members?