Anyone watching Fargo? If not, you need to. Freaking excellent show.
But on Fargo, they made a reference to Reagan and him not giving too many details on anything. It sounded exactly like some people's doubts of Trump.
A President's job (to me) is to have a vision and a direction we need to head in based off current conditions.
Putting a LOT of smart wonky advisors and cabinet members around you are for ironing out all those details to get to that place. Which is exactly what Reagan did (Haig, Baker, Schultz, Bennett, Rollins, Laffer), and even Clinton to a lesser extent (with Carville and Morris).