True for T20 as well. This series has pointed so many mistakes, and weakness, which otherwise playing in UAE won't have. We still got time. If we hadn't played this series, and found these mistakes in England, we won't have any time to adjust. This series will define what we as a team, will do in the world cup.
Few things to learn from:
1- Shinwari can't be trusted. The guy may be able to pick wickets, but he has nothing special up his sleeve. It's better to include Faheem in the team, as he can bowl yorkers at the depth (can be used like Umar Gul in 2nd world t20)
2- Need a solid batsman instead of an all-rounder top of the order, like Babar. It could be Shan Masood/ Haris Sohail in the ODIs or someone better, coming from the next PSL.
3- Guys like Asif Ali, aren't match winners, and a spot in team shouldn't be wasted on them. Asif ali doesn't have the technique to play against quality bowlers. Might as well back Hassan Ali to do the scoring. Can include a proper batsman in place of him
4- Need a leg spinner coach. Ok, so we need Mushi bhai or Saqlain, to work with our spinner, Shadab. Shadab can be explosive with the ball, but he lost his way around due to spanking from south africa. He is bowling too fast, and too short/full. Need to coached properly.
5- Azhar Mehmood, our bowling coach, needs to be replaced. He hasn' t helped improving our fast bowlers. he told that he is working with amir on his wrist, and now amir lost all the weapons up his sleeve and is now very mediocre medium pace bowler. What is even Azhar doing in the team? If he can't improve bowlers, he should resign.
6- Fakhar: He needs to stop playing pull shot if he can't control it. Just duck it altogether. What is Grant Flower doing. How much time Fakhar has been in our side? Why hasn't he worked upon Fakhar's technique?
7- Talat: Guys like him, who are selfish, shouldn't be given another chance ever. They will let you down, but will be happy for themselves due to their personal gains.
8- Sarfraz: He needs to be proactive and more attacking, with bit of more thinking. He will prove to be better, despite what I have said earlier. All he needs is more attacking cricket & should think logically