The purge should have happened in the first week of the new administration.
Every Obama hire should have been handed walking papers. But, they given enough rope to hang themselves over this past year, and they did, showing their true colors.
So this ultimately is a good thing.
Trump is not like any other administration. I believe Trump would rather give people a chance and fire those who demonstrate they're a risk or can't or will not do the job. Trump is the outsider, he had to find out on his own.
You're correct, in retrospect, this is a good thing because he's clearly demonstrated just how deep and widespread government corruption is.
For example, who would have ever believed big media, the Democrats and the FBI conspired to frame the President of the United States and were attempting to throw the election in favor of the Democrats!
This is epic and historic. And now we know.