I keep meaning to mention this, but I keep getting distracted. ;–)
A few chapters back, Devon said Colin was (Acting) President of the VUN. Then there was a small disagreement because Colin believes Devon is the real leader. I believe Colin should be Prime Minister, the one who gets things done. And Devon should be President, a more ceremonial role where he goes out and talks to the people.
Or maybe they can be CEO/CFO (Chief Executive Officer/Chief Financial Officer) and COO (Chief Operations Officer) – in this case George would be CMO (Chief Medical Officer), Mark seems to be Chief Security Officer and Stan is Chief Technology Officer.