Donald Trump is going to become very frustrated with the government and it's processes.

USA infrastructure in the way of agencies and restructuring would require at the very least a public comment period of several months before any changes were realized. 

The laws and infrastructure of the USA is not OWNED by the President. Those laws and infrastructure were developed over a lengthy time span and are owned by the people. The people must have a voice in it's government and when major changes take place it requires a public comment period before changes are instituted. That is the case with all the executive branch agencies. 

It is going to be a circus. If Donald Trump simply sits in the Oval Office and writes Executive Orders, there will be lawsuits to intercept his dictatorship.