I worked for two different organizations that had tough guys come in. (only 200-400 'employees', not 300 million, so I don't know if the anal works well here.)
First was place that was having serious problems; morale, competence, safety, etc. New guy brought unforgiving, austere, take-no-prisoners mentality. Everyone hated it, but the organization was turned around in less than six months - the guy was replaced with a more 'normal' leader -- the changes was planned as temporary from the start -- and things were good for a number of years. Workers embraced the professionalism and increased productivity and sense of quality.
Second place was mid to high performing when the new boss arrived with lofty goals for the organization and even loftier ambition for himself. We rocketed to the top very quickly, but at the expense of a lot of great talent and permanent damage to morale and culture. As soon as the guy left after a couple years, I think, the place went down fast. Not that it could have sustained the beatdowns and micromanagement much longer, even if he'd stayed.
No comment on presidency...really....just thinking about the restaurant thing
I guess that in my experience, getting the organization on board with tough boss' plans probably requires a fair amount of respect, even if he's widely disliked....not sure Trump is going to get there.
I also think that the nation is a pretty low point of patisanship, not just of our leadership, but of the population. One of Trump's signature management techniques is pitting under-management against each other -- competition and all that....might work in business or reality tv....or even in Congress -- but, I'm dispirited by the divides opened up all over society and I do think that Trump has to accept some of the blame for that.