"Trump has transformed the White House into what resembles a personal fiefdom with senior responsibilities and positions given to family members." 

Trump is paranoid he is going to get caught for colluding with Putin to swing the election.  That is one of the reasons so many people have already left the administration.  Like Nixon before him, he sees nothing but disloyalty.  His family are directly dependent upon him for their economic well-being.  They are chose for sycophancy rather than ability.