Certainly, we should adopt foreign concepts, adapted to our needs. According to the pledge given by the President this could easily have been done, under Article 82 of the Constitution, especially because the UNP Opposition was willing to support such an amendment. The present Constitution gives the President absolute despotic power. The present President holds all these powers and is not answerable to anyone. What we have is a 'One man' or 'One woman' government under the facade of democracy.
Modern life is far too complicated for one person to make all the decisions.
Nothing gets done unless it has been first approved by the President. There must be a Central Executive. Many suggest a return to the Westminster form of government with a cabinet headed by a Prime Minister. But this need not necessarily be so. Our experience of the British style government has not been totally happy.