He has fitness Problems.
1. His legs are not strong enough currently and grounds are heavy underneath. As the tour has progressed his speeds have dipped.
2. Rashid & M Wasim suspect that he is carrying a niggle.
3. Because of not having peak fitness like last Emgland tour plus technical issues with action with not using his non bowling hand completely and not having a strong follow through. This means He is neither bowling that quickly as previously and he cannot pitch the ball in fuller length or slighly short of fuller zone areas. ( kamar poori nai lag rai )
4. Plus he is unable to consistently bowl in same areas with control on runs where than he can work the batsman and also experiment.
5. Another key thing is absense of Waqar or Aqib or somebody good enough in the dressing room. 3 tests are gone and even prior to the series this should have been figured out rather 2 months before the series but they could not.
Amir is unable to bowl the delivery that leaves the right hander or goes straight with the angle with upright seam. He just has an inswinger. He has lost that delivery which got him Tendulkar's wicket plus kept batsman guessing about what He is going to bowl next and create doubts in batsmam mind whether its inswing or outswing. Now what he does is that his natural wrist lock is for inswing so he can't unlock it to bowl a seam up delivery with seam facing first slip or atleast be straight. So whenever he does not want to inswing he bowls a mini offcutter with scrambled seam. Now this delivery is slightly slow than his already slow speeds plus the batsman picks what he is doing as the seam is very scramled and not wobbly. So the batsman can easily leave it.
This is a huge failure of Sleeping Fast Bowling Coach who is getting highly paid but his output is absolutely Zero. Shameeeeeeeeeee.
Having said that this does not mean that Amir is finished or He can never bowl like 2010 ever again. But close your eyes and think of that Amir. He used to ask tough questions from batsmam every 2nd ball. Natural length was full or slighly short of full length. And accuracy of aimed lines and lengths. Now accuracy of line and length aren't like previous plus he is not able to bowl up to the batsman and relying totally on single swing.
Amir bowled better against Somerset than he has done in this series plus those 4 dropped catches have also stolen much needed confidence booster from him.
After that Terrific Jaw dropping spell against India in Asia Cup where all felt that Amir of 2010 is back again, his graph has gone down rather than going up.
Pakistan badly needed Waqar to help Amir. Now he has to do all himself if he can to revive his old bowling with technical & physical improvements because there is no one at NCA either to work on the issues I have highlighted.
Amir should call Waqar and talk to him about his bowling. (Technical sides)
Oooohhhh Amir hope somebody tweets you link of this thread and you read my post in your hotel
We must back him and believe in him but only backing and believing won't solve the issues.