If we're trying to find a better government, wouldn't it be better to decouple things? Break down the responisbilities of government into a few major areas that

If we're trying to find a better government, wouldn't it be better to decouple things? Break down the responisbilities of government into a few major areas that probably align fairly well to the existing structure (DoD, NIST, IRS & the social safety net programs, etc), and then instead of electing representatives and senators who get put on committees by seniority, elect people specifically to small-ish committees responsible for policy in one specific area.