I think you are misunderstanding the “current” hierarchy. How the current structure should work, http://thrivegame.wikidot.com/revolutionary-games, (I admit that other team leads are quite inactive):
each team has a lead who is responsible for organizing that area of the game and working with our microbe stage designer (@tjwhale) to plan what things need to be done related to their team’s area for each release. Then in theory we have an overall team lead who is responsible for keeping everything together (@NickTheNick) but he isn’t very active, though he has posted in the past six months (Personal Feedback on 0.4.1, Tooltips Update for 0.4.2).
So current structure is that we have an authority on design of the microbe stage who will call the shots after a discussion concludes and each team lead has the say over their area (I provide feedback on the code structure and will say how things should be done). We have structure.
The only team with more than just one or two active members is the graphics team (which is currently lacking active leadership). So I don’t think we have enough team members to warrant any extra level of management (it was mentioned earlier that management should be pyramid shaped). Unless someone wants to dethrone @NickTheNick but once again I don’t see that as necessary now that we have chosen a lead designer.
tldr; I don’t think we need any more levels of management than we currently have.