Gloster, who had worked with the Indian team from 2005-2008, feels that "maintaining proper workload is an area of concern not only for Indian fast bowlers as well bowlers from other part of the world".
"Varun is what 24 years and he has already had a back surgery and that's not a great thing at such a young age. So he is fast bowler, who needs to be managed very carefully as there is every chance of a recurrence," Gloster, who has managed the likes of Zaheer Khan, Ashish Nehra, Ajit Agarkar during his stint with the Indian team, told PTI on the sidelines of a 2015 ICC World Cup promotional event.
"Varun Aaron bowls at 90 miles per hours while Bhuvneshwar Kumar barely touches 80 miles. The fitness programme for both would be entirely different as workload also varies completely," said Gloster, who is currently attached with the IPL team Rajasthan Royals.
On Ishant Sharma's recurring ankle problem, Gloster said that bowling in English conditions is completely different because of the "pounding that the feet takes on softer grounds".
"As far as I know, Ishant's rehab went well. Now the problem is that a fast bowler, who does not have an experience of playing county cricket in England will have difficulties on the softer turfs. The pounding that a fast bowler's ankles take on landing is enormous.
