While others salute his overtaking Sir Matt Busby's 8,810 days in charge, Ferguson will reflect on the new Blackburn owners' sacking of his friend Sam Allardyce and fear what it means for football.
Shaking his head in apparent disbelief, Sir Alex said: 'If Sam had won last Sunday, they'd have gone fifth in the League. But he still got sacked because they said they should be fourth! 'You've got an issue at Blackburn where an agent is said to be involved and deciding the future of the club.
'Jerome Anderson? He couldn't pick his nose. It's baffling, and it's a serious threat to how clubs are run and how they conduct themselves.
'The unfortunate thing is, it's actually becoming quite trendy to sack a manager indifficult circumstances and I just wonder whether Blackburn thought, 'You know, if Newcastle can do it by sacking Chris Hughton, we can do it'. I don't know the answers to it, but what I can say is that a manager's job, whatever he's getting paid, it's not worth it.'
Words of wisdom: Ferguson gets some tips from Sir Matt Busby before the 1991 Cup Winners' Cup final withBarcelona
Ferguson himself was the subject of intense speculation in 1990, when elements of the media said he was about to lose his job, although he stresses he had been assured his position was safe.
That was in the run-up to an FA Cup tie at Nottingham Forest, which United won, and Ferguson recalled: 'I will always remember [TV pundit] Jimmy Hill saying the United players looked beaten in the warm-up before the Forest game, which I thought was an amazing statement.
'But that's what the media do. They create a snowball which gathers momentum and it gets through to the players. All of a sudden they see the pressure on the manager.
'Martin Edwards, our chairman, told me before that Forest game I was definitely not going to be sacked. But if we'd been knocked out of the Cup if we'd been relegated how would the supporters have reacted? Would the crowds have fallen away? Inthat situation I might have gone away, but nobody will ever know.
'I've always been lucky I had Sir Matt and Sir Bobby Charlton, who have been the custodians of the club's history. I said to Sir Matt years ago that we should be embracing United legends here, and we do that now with people like Denis Irwin andBryan Robson and others like them. They understand the role and the difficulties a manager must face. Sir Matt and Sir Bobby knew that so I was lucky in that respect.'
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