Sir Alex Ferguson admits players always ask when he is going to retire as manager before signing contracts with Manchester United.
The Scot celebrated 25 years in the Old Trafford hot seat last November and is intending to carry on for another two or three years.
He previously reversed a decision to retire a decade ago and, having recently turned 70, the subject of his longevity remains a topic for conversation.
Ferguson revealed that both current members of his squad, and prospective new signings, are always keen to try to find out when he intends to step down.
"Yes, they all do that now," said Ferguson. "When they come in to the club, the agent will ask David Gill that question.
"But that becomes more difficult to answer the longer it goes on, of course.
"It is not a question we need to answer because we just don't know. But the only way we can answer it is by saying, 'Well, he has no intention to retire at the moment'."
Ferguson has signed countless players during his time as United manager, but he still rues the failure to capture Paul Gascoigne in the 1980s.
United lost out to Tottenham Hotspur for the former England international's signature and Ferguson feels Gascoigne erred in his choice of clubs when he left Newcastle United.
He added: "I tried to sign Paul Gascoigne. Since 1966 he's the one star England has produced.
"He was unbelievable. I wish I could have got him and done something with him.
"He could have played for Brazil. The mistake he made was going to London in his early twenties. Bryan Robson or Bobby Robson would have helped him a little bit here."