Sharon, you would not really need to much backing from the established politicians. For this to work it would need to be a movement like the TEA party did. Basically a grass roots effort by the citizens of this country. Wouldn't you feel better voting for someone that could not really benefit themselves by being elected? If all they got was a pay check and employment for 4-6 years you weed out a huge number of egomaniacs that are trying to build themselves a kingdom of power. I know it's a dream that will never happen but the way we are doing it now is a huge Failure.
To all of the above:

But, the logistics of that may still be difficult. For instance, IMO, these people who take positions in the Grass Roots party would probably need some sort of guarantee that their job would still be there when they returned, sort of like being in the National Guard. To make that possible, existing politicians might have to be willing to help get legislation passed. Also, some of these new party people might be "convinced" by "gifts" to family members, etc, or some people who run for this office might be plants, "seeded" to worm their way into the new party, if you get my drift. While there would be problems like the above to solve, it certainly sounds like a good idea to try.