Mohammad Amir now averages 33.72. He has bowled a lot in English conditions!
A lot! So much so that 50% (42 out of 81) wickets have been taken in England at an average of 26.26. His numbers outside England are as follows:
Australia - 48.53
Sri Lanka - 43.50
UAE - 38.50
New Zealand - 36.14
At best these are ordinary stats for any bowler.
What must he do to improve these numbers?
To add, another young bowler by the name of Bhuvneshwar Kumar now averages 28.80 having less than 30 average in 3 out of 4 countries he has played (29.81 in India (graveyard for pace bowlers), 26.63 in England and 9.83 in WI) so it is not impossible.
A lot! So much so that 50% (42 out of 81) wickets have been taken in England at an average of 26.26. His numbers outside England are as follows:
Australia - 48.53
Sri Lanka - 43.50
UAE - 38.50
New Zealand - 36.14
At best these are ordinary stats for any bowler.
What must he do to improve these numbers?

To add, another young bowler by the name of Bhuvneshwar Kumar now averages 28.80 having less than 30 average in 3 out of 4 countries he has played (29.81 in India (graveyard for pace bowlers), 26.63 in England and 9.83 in WI) so it is not impossible.