And that's why Darui assists him. A also has good leadership skills, since he was elected head of the army.
What are you going with these threads? >_>
When was strength ever needed to be a hokage? Hokage's don't even fight their own battles unless the circumstance is special. It's sorta like kings kings don't fight their own battles they send others to fight for them in this case it would be the jouninn's and the anbu. That would just be like saying Shikamaru can't be hokage cause he isn't smart enough.