Seeing as i have returned to wow quite recently, same with you Tim, i have yet to hit lvl 80. (tho will do so very soon) At the moment the guild is a nice and social environment where people seem to get along nicely. What must be given a thought is where we want the guild to go, what we want from it in the near and distant future. Myself i want to raid, it is my main reason for continuing the game, as well as being with the people i consider as my friends on wow.
To start raiding we need a Raidleader, someone who knows a bit more about it all than the rest, who can pick the team for the night and lead it. Several raidleaders will be needed, but it should be a point not to have too many of them, 2-3 should be sufficient as it would make a bit of room for the RL's irl life.
Recruitment officer? Might be a good idea. A person who sees what classes are missing out and who will do the active recruitment. Also the person who will accept/deny players access to the guild. He/she should consult the gm's if there is a matter of yes/no, but it is important that this officer will be given the final power of decision.
Other than those i cant really see us needing any more. Its better to bring in more as needed than appoint a bunch of officers without anything to do.
My two cents
Urias