There is something to be said for the out going captain stepping aside a year or two before he plans to retire, to smooth the transition for the next captain, and also to be there to provide advice and "mentoring" (for lack of a better word) for the new captain. It may also provide a different perspective on things (although, considering the structure of the leadership group at the AFC, this may not be the case, I'm not sure).
This scenario doesn't really have much to do with the outgoing captains leadership, which will always be there while he's in the team, but rather aiding the transition for the next captain before the outgoing one retires (which I would presume Goody is going to do in the next year or two).
There is also the chance (slim though it may be, seeing Goody is in the AA squad) that the reduction in responsibility will bring about improved form (ala tredrea)
I think it does because as we all know, it’s the players who votes on the leadership group and then the captaincy. The way I see it, unless Simon Goodwin says he doesn’t want to be captain, his leadership quality from years past will assist him in getting the votes needed to retain the position.
His peers select him captain as they want to be lead by him. The club doesn’t select him as he is the best looking or most media savvy, he is selected captain by his peer in the playing group. This is why i said his leadership qualities are not a problem.
The basic premise of what you are saying, I agree with and would have no problem with a different captain but just don’t see it changing unless Simon Goodwin doesn’t want the captaincy.