I have always thought about the buchou/captain thing, specially when scanlating. It seems so wrong to write "Buchou" as "captain". I thing maybe one of the reasons, in the case of Tezuka, is because he is more the King of the club that the one who leads them in battle, unlike other series. His word is law, and his presence is soothing, but they don't go to him for counsel, nor is he the one who determines victory or defeat, or whose dreams everybody shares.