It will be very unfortunate if the idea of Presidential system is killed once again. 80 percent of world's countries follow presidential system. Parliamentary system is a white elephant and extremely expensive for a country like Pakistan. Simply changing faces/parties without changing the system will be futile as it has amply proved. Referendum on the matter should be held forthwith and implemented without delay. Even the IMF should demand it, otherwise economic woes will sink Pakistan into default, one reason for it being the colossal overhead expenses of governance (along with collateral corruption) in Pakistan, due to the parliamentary system.