There is a paradox in this article. If the politicians who are re-writing the constitution come from inside a dysfunctional system, how will they be able to ever come to a consensus?
If you have a democratic system of any kind with any degree or option of delegation there are always politicians. They may have different titles, but they are essentially the same thing.
That is the issue with the current constitution, it doesn't allow a consensus; it doesn't have anything to do with politicians.