Manan,
Great get if we can have Pyke do that interview.
Can you ask him whether, in his view, there's a physiological limit to how fast bowlers can go, and if he has in his mind what it might be? Especially given some of the pre-speed gun claims of how quick Thommo and others may well have been.
I'm not sure, but I think he may have been the doctor who got Lillee back on track with his injury. I'm at work and don't have access to Lillee's Art of Fast Bowling - I have it at home and will see if it was indeed Pyke. If it was, that might be an interesting issue to broach with him as well, because IIRC the treatment Lillee underwent was way ahead of its time.
Edit; I've Googled Dr Pyke and it seems he was indeed the pioneering doctor at issue. From the MCG website:
A former schoolmaster of Dennis's at Belmont High and then exercise physiologist at the University of Western Australia, Dr Frank Pyke, arranged a sequence of back strengthening routines. And the great bowler's running action was adjusted under the guidance of Austin Robertson Senior, an experienced athletic coach who had contested the world professional sprint championship series in Melbourne in the 1930s and was a noted footballer with the famous South Melbourne team of that period.
The physical training programming and supervision of Pyke and Robertson, allied with Lillee's extreme determination, provided a winning recovery formula. Dennis had done plenty of training prior to the injury but according to his wicketkeeping accomplice, Rod Marsh: "He did a heck of a lot more after it."
A critical aspect of this rehabilitation was the need for the bowler to modify his overall method, with the objective of minimising, perhaps eliminating, any possibility of further back strain. "He changed everything," said Marsh, "his running action, approach to the wicket and his delivery. All of this to achieve optimum economy of style."