Not sure that I like this idea as much, only because creating a few undescribed positions at the beginning of the game my throw us off with participation vs. office control.
This is a possible scenario, but the elections for the President (or beginning official) would create huge hype. Also after the first city is settled, a governor position may pop up, again which might be a big election and as soon as create a worker or settler there comes one or two more positions. Positions would be created rather quickly. Also with one player governing the first few turns the first few play sessions would go by rather quickly (it's possible the first 30 turns could be played in one session) and you might see as many as five new positions open by the second week.
Well so can every other close debate. Democracy means that there are going to be a few turf wars. If you pay attention to the last DG, you would find a few heated debates. Once the distribution of a power is polled via initiative, the decision should stick. We could implement a limit, such as once a non-in-game initiative is made, it's decision can not be reversed or affected by another initiative until two weeks pass. This way people aren't constantly trying to get a decision overturned, yet they still have the power to do so.
So we don't have to give him complete power. With atleast a constitution in place, we can limit his power. It shouldn't be hard to write a rule that limits the President's power, such as rules that state:
The Citizen's Assembly has the right to create a office and distribute powers as any time via a initiative poll.
The Citizen's Assembly has the right to impeach the President via recall poll with 51% of the non-abstain votes being yea.
Upon creation of a new position a two day nomination period followed by a two day election period will be held (and can be mid-term.) (Daveshack's idea.)
This way if the citizen's feel that the President is making too many unpolled decisions, they can simply impeach.