Partly Facetious: Presidential system, what for?

"Oh, this is too cute for words."
"What?"
"The most recent statement by the Advisor to the Chosen One on Law and Justice, namely, Sharifuddin Pirzada."
"What did he say now? Amend the constitution further?"
"Yes he did, though these amendments are in the works. But anyway what I wanted to bring to your notice is his statement that there is no proposal to change the present system with the presidential system."
"What is the present system?"
"Well the Chosen One is not the one with the real power."
"Who has the real power?"
"The President."
"Or the Chief of Army Staff."
"Doesn't matter, it's the same man."
"So we do have a presidential system of sorts in the sense that it is the President who has the power."
"But on paper, in the constitution the PM is the head of government."
"Which you and I know is subject to change at the whim of the President as per the amended constitution in which Pirzada has had a hand shall we say."
"But we all know the real picture is that the President has the real power, I mean even the most gullible amongst us all ..."
"Yeah, you are right even Chaudhry Shujaat must know where the real power lies!"
"Indeed he does. The main power is with the President and the residual power is with him as the chief honcho of the Lota party these days."
"Who else was present at the meeting where Pirzada made this statement with a perfectly straight face?"
"Chaudhry Shujaat."
"Ah yes, and of course he let the statement go without batting an eye."
"Yep."
"But as I said before they are amending the constitution in terms of granting greater autonomy to the provinces."
"With one small proviso: as long as they do what Musharraf wants."
"Yes of course but Pirzada went sanctimonious on the issue of provincial autonomy. He said no party has two-thirds majority and so they are seeking a consensus."
"When pigs fly."
"As I keep telling you they do fly in Pakistan."