I think any larger undertaking needs a division of labor and a division of power, the suggestion that people can apply to be elected and be voted on and then after three months would have more public confidence.
Obviously the platform needs a strategic focus as well as in policy decisions and direction so the executive branch should have the right to publicly veto any proposals but to do this publicly with open transparency . . .
At least then we can see that more than a few personalities are involved : )
just my two cents worth ; )