Seems to me the biggest problem is the dysfunctional relationship between members of Congress, especially in the Senate. Both sides use arcane rules to get their way or work grinds to a halt. Some kind of negative pay for performance incentive needs to be put in place. Long gone is the "reaching across the isle" and working out a compromise. Perhaps some Web site rating the use of arcane rules and other obstruction tactics could shame otherwise mature individuals into working together.
It's often been said that a do nothing Congress is a good Congress. Well that approach to less government clearly is a dead end. Members simply need to step up and make the very hard choices to get the monster under control. Rep. Paul Ryan has a extensive proposal to get spending and benefits under control. He calls it a "Roadmap for America". See: http://www.roadmap.republicans.budget.house.gov/
Some version of his ideas must happen. Take a look.
His fellow GOP members refuse to endorse it.