Hmmm. He burst onto the scene and on his first tour here he was fantastic, it swings and that helped him-as it would any bowler.
Then seemed to fall out of favour and had a couple of injuries that set him back. I've watched enough of Pakistan bowlers over the years to know they can produce real pace and movement, but bowlers like Wasim and Waqar don't come along to often. They are the best two pace bowlers I've seen from Pakistan, I don't think Amir was going to be as good as those two, perhaps expectation was too high.....
Looking at the Pakistan attack that toured here this summer they don't need him, and I would expect him to fade out of the scene even more so.
I think it's fair to say for whatever the reasons were in my opinion his career started to go down after that infamous Lords test match.