Note MI has the same SAPs as NSA, CIA etc as designated post 9-11.
Why is this relevant?
Who can be held hostage and controlled?
CIA thinks its foreign offshore assets are strong enough to defend against the US executive (not accounting for military use on domestic soil).
Why does the Constitution explicitly grant this authority to the President and what is it to prevent?
They knew our agencies would grow in power so much so they could/can hold the executive hostage or engage with bad actors.
Trump nominated someone new to direct every agency but one. He controls the top.
I also was looking for this too. I see one guy was nominated from Obama's team. Seeing if there are others: Director of the National Counterintelligence and Security Center, William Evanina See Wikipedia: https://en.m.wikipedia.org/wiki/Political_appointments_by_Donald_Trump
And also https://en.m.wikipedia.org/wiki/William_Evanina
Additional note: I'm not sure if there's another person the post is talking about so please don't make any conclusions from this