Quite frankly, I think that is an EXCELLENT idea.
I saw someone else suggest this once a long time ago, and couldn't agree more. They had also suggested what I thought was brilliant in that these offices had to also re-locate every 4 years with the national election to keep poison roots from growing in one spot.
This makes them shed low-level staff who grow corrupt, and above all, keeps the DC swamp evaporated, not letting the tainted water rise to the level where anything can be hidden by it.
I may not be the same person you're thinking of, but I have maintained that moving the government to Dubuque, IA and have them take up office wherever they can find it, would keep the festering chancre sore that is D.C. at least honest.
You know, have the Senate move upstairs over the Moose Lodge. The House can have that abandoned Motel Six over on the Business Loop. And the Supreme Court can move into that burned out crack house over on Elm St.
The rest of the lobbyists and public-teat suckers are on their own.
Rinse and repeat, at least once every 50 years. Of course, it wouldn't take that long for the infection to grow and we'd have to lance that boil that Dubuque will have become, but we can cross that bridge when we come to it.