The goalkeeper has played at the highest level and represented England during the last World Cup in South Africa.
But, when the day does come for him to hang up his gloves, Green insists he won't be turning to the coaching manuals.
He said: "Having worked with some of the characters in football, and having to be nice to them - and knowing your job depends on you having to be nice to them just doesn't appeal to me.
"There's no longevity in managing - and not much sense either."
The former West Ham player also admits that very few players in his position go on to make a good career out of management.
He added: "I can see what goes on defensively in a game, but 80 or 90 yards away you can have no idea about the attack or how someone scored.
"I guess it's once a goalkeeper always a goalkeeper."
QPR entertain Yeovil on Saturday afternoon in the Sky Bet Championship.