That's a big pool of establishment liberals you'd have to draw from if one were make a random selection.
Would "law enforcement" include BATF agents, FBI directors who hesitate to refer criminal charges on the privileged class and corrupt state and federal prosecutors?
If you were to add "clergy" to your list, odds of selecting a conservative might improve, but only slightly.
It sure is. Still, on the whole not as liberal as the group comprising newsreaders. Leaders in the private sector are another possibility, and one could even look outside the country for informed debate moderators.
There are other ways to shake up the system, have the questions submitted by the candidates.
The current arrangement is a joke, it elevates the propaganda ministry.