"Someone like Simon Shaw will also take on that responsibility now as one of the key, experienced players who has been there for more than a decade.
"Guys like James Haskell and Tom Rees are maturing and they should be making a real mark in the game."
Meanwhile, McGeechan is confident Danny Cipriani is recovering ahead of schedule from the broken leg he suffered in May.
"Danny is running again and by November he should be there or there abouts for a return."
If the 20-year-old fly-half can make a full recovery he is certain to be in the frame for a Lions place come the end of the season.
McGeechan will confirm his coaching team for the three-Test tour by October, with Wasps coach Shaun Edwards and Wales boss Warren Gatland expected to be involved.
He said: "A successful coaching team is all about getting the chemistry right. You need people who enjoy working together."
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