Orszag doesn't include the Congress in "the government." To him the "government" is the Executive Branch alone. The legislature serves primarily as an obstruction to the smooth running of "government" and should be replaced by a Bureaucracy that answers only to the President and probably not much even to the President insofar as staffing the bureaucracy and the details of its functioning are concerned. His ideal government is one designed by Franz Kafka.
The Republicans already accept much of these ideas in that Republicans will not "clean house" in the Departments and Bureaus when they get the Presidency. They allow the Bureaus to function, largely in near open opposition to the Republican President while Republicans just wring their hands and say "what can ya do?" Democrats make cleaning house their first order of business.