I mean he's even not that great at his chosen profession which is a television news media personality, although I am sure he knows what he is apparently trying to do, in that regard.

Indeed.

One of the contracting things I turned down was someone who knew what they wanted to do was make Uber for aircraft.

I turned it down because they clearly didn't know enough about this goal to fill an elevator pitch, let alone a slide deck, and I think many of the current US Secretary of XYZ leaders are similarly unaware of how vast a chasm lay between what they wanted to do and a specific, measurable, realistic, and time-constrained plan to actually achieve anything.

English language ambiguity problem. "Knows what he is doing" has two potential meanings: it could mean competence, or it could mean clear intent. I think OP meant the latter.