How easy for a new president who is been elected to fight corruption in a nation where all the systems of government is been corrupted, like in the force, and judiciary, even the politicians.
Having the mind to stop corruption is not easy in a nation that corruption is seen as nothing, making an attempt to do so some politicians will do everything to frustrate the agenda. Do you think a genuine president can easily end corruption of this level ?
We cannot solve our problem by using the same tools we use in creating them. Corruption is a killer disease that can destroy any nation if a drastic measure is not put in place, so I don't think if there is any government institution that is competent enough to fight corruption because most institution was instituted by corrupt leaders for the purpose of fighting their political opponent.