You know, I realize that hindsight is 20/20, and
pardon me for being naive here, but....
there has to be some way, some method used, whereby an incoming administration can vet the holdovers in agencies like the CIA, FBI, NSA, etc., and ergo, be able to determine 'some' measure of future loyalty (or disloyalty). Those that are found to be a possible problem would, could or SHOULD be watched or monitored as a possible security problem. And certainly those, like Wilson and Plame, should never be given any position of authority or power (as they were).
I mean...it ain't brain surgery or rocket science. It's common sense. What happened to common sense in the White House? These two should never have been allowed to stick around that long ANYway.