So you tear down the Executive Branch and replace with....an Executive branch? How about the Congress? Still bicameral? Will there be a Supreme Court? Or something else? Can we keep the bill of rights or shall we toss that out as well? What is in place is the same form as was instituted in 1787. Unless you have a better idea on a form of government, I don't see what demolishing this one will prove. You'd only replace it with the same thing, which would have all the same pros and cons.