One problem is that representatives aren't specialized. Nobody would run a business where 435 people who all had the same title and job description got together to decide how to run things. It isn't quite like that; there is hierarchy in Congress. But everybody has "legislator" as their job description. This requires them to be experts in the law. Really, they should have some legal experts to help them figure out where things should go in the legal code, and how they should be written; and a bunch of other experts to argue over what should be done. Having the lawyers run Congress is like having the clerks run a company.

I wonder where the founding fathers imagined the ideas to run the country would come from. Did they think that congresspeople were supposed to get ideas from their constituents, and figure out how to encode them into law? The founding fathers didn't want there to be political parties, so they may not have expected the center of debate to be in Congress itself.