The youngster is currently captaining England at the Toulon tournament.
"Having done that, he has added another string to my bow. I feel I can now play in a number of different positions but he has not only helped me technically, he's helped me physically. I am the fittest I've ever been in terms of the running he makes us do.
"We do two or three gym sessions a week that involve a lot of running and running with resistance. He demands a lot from us and it is hard work but it has been proved to work. None of us want to see him go. He is a fantastic manager and he has done really well."
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