I believe It's not so much that it takes TIME to develop a case against members of the deep state and wider Cabal, the delay is, rather I believe, and as you said in your opening remarks Dave, that the general populace MUST be apprised of the horrendous scope of the criminality by which we are currently governed AND EXACTLY WHO THE PLAYERS ARE ......
If Trump became involved with taking these Crims out before the general populace recognised them for what they are, they would simply scream that Trump was just getting rid of his POLITICAL OPPONENTS out of political spite RATHER THAN AS THE UNSPEAKABLY HEINOUS CRIMINALS THAT THEY ... Rather than as ENEMIES OF THE STATE BOTH FOREIGN AND DOMESTIC. .....
Via his Dec 21 EO Trump could take these psychopathological monsters out at any time - but again "Justice must not only be done, it also must be seen to be done"