I think what needs to be done in the future is better vetting of whoever wielded a lot of influence in the staffing process. I assume that's a fairly small group of people. I believe Reince Preibus may have coordinated it. That may have been the problem right there. A future conservative President cannot have someone like that coordinating the staffing process.
My idea would be to just fire 60% of government employees and nominate NO ONE for any position. Let them stew.