I'm disappointed with Sarfraz - in all formats. I can't remember the last time he played a leader's knock since the CT last year. Needs to start leading from the front.
If you're referring to the Sri Lanka game, that was one of the worst and luckiest innings from his behalf. He literally tried to throw his wicket away multiple times in that game alone, I'd give more credit to the way Amir held up the other end. Captaincy seems to really be getting to him.
Back on topic, dreadful from Pakistan. Seemed like they let the Lord's game get to their head. Barring Shadab (who has really impressed as a batsman in his test and ODI career so far), no one seemed to put in a fight. Sarfaraz was his usual self-destructive self, Imam fell early again in the first innings, Shafiq should really be aware that bowlers are going to bowl short to him, Usman was a debutant so I'll pardon that innings. Haris Sohail is definitely not suited to be a test number 3.
Pakistan really needs some magic to bring the game back to even stevens.