Many today - Asif had a game to forget, Malik should retire in between WC like he did in middle of a Test series. Sarfraz was simply clueless - lead poor, kept poor, batted without direction. And, Imam consumed lots of balls, then got out to a leg side wide just after reaching 50 (suggestive), Babar & Fakhar played nothing shots to get out at wrong time.
But, if I am to pick one, I'll pick Hafeez. MoHa started brilliantly (helped by timely Max bashing as well), but the timing of his dismissal, to that ball (& bowler), just after his set partner was out - absolute game killer. Destiny of the game was decided with that shot - Asif & Malik just made it sure, while Hasan & Wahab made it statistically close. MoHa got out when the asking was still around 6.5 ... to a part-timer; after 17 years of experience