I've been a vocal critic of Sarfraz's captaincy despite him having the best returns over the past 10 years for any Pakistani captain. But Sarfraz has been winning a lot against Sri Lanka / WI / Zim and it has inflated his numbers.
Sarfraz's style of captaincy is only suited to T20 where things happen at a very quick pace and the team already has a set plan of which bowlers bowl at what times. I haven't seen Sarfraz being required to tweak game plans very much even against big sides because Pakistan generally is a very good T20 team. Our T20 team is on auto-pilot mode right now and Sarfraz seems to be enjoying that role. Still remains to be seen how he reacts when turbulence hits. I would guess very weakly.
The more time you have on your hands, which you get in ODIs and Tests, the more Sarfraz's captaincy will get exposed because he's not an astute thinker. He's certainly no Misbah - whose captaincy dwarfs that of Sarfraz. People hate Misbah because they see boring written all over him and our fans love the flashy stuff which Sarfraz is. Sometimes our team gets on a roll and it makes Sarfraz look good but to be honest I haven't seen anything special in his captaincy. Even yesterday when the team was taking a beating at the hands of Rohit for a good 4-5 overs, he resisted introducing Shadab until the 13th over. Another example of his poor captaincy is in fact in the CT 2017 final when he kept feeding spinners to Pandya despite the fact that it was well known that Pandya is a beast against spinners. And he never stopped. In fact gave Fakhar Zaman a bowl against Pandya.
In Tests, he will be exposed even more especially in a place like UAE which demands a lot of patience. And Sarfraz is unfortunately of bereft of that. He's too impatient to the ultimate detriment of his own team.
I don't know why he is playing 4 fast bowlers in the ODIs in the UAE. The selection committee made a huge error in sending 6 fast bowlers but then the bigger crime is of the team management of playing 4 fast bowlers when you have Nawaz sitting on the bench. Granted, that Nawaz is also a mediocre bowler but him being a spinner is still going to be better than a medium fast bowler on these pitches. If playing 4 fast bowlers was Sarfraz's decision, then it reflects very poorly on him as a captain on not understanding match conditions. If this wasn't his call, then it again calls into question his level of influence. Either ways, this is on Sarfraz.
He better pull up his socks with regards to captaincy.