Almost two years ago, Chelsea attracted widespread criticism for sacking Andre Villas-Boas, who had just entered the ninth month of his tenure at Stamford Bridge.
The Blues had been humiliated by Napoli in the Champions League last 16 first leg, while in the Premier League they were floundering in fifth place, having taken a disappointing 46 points from their opening 27 matches.
But at the end of that season, having replaced the hapless AVB with former Blues’ midfielder Roberto Di Matteo, Chelsea had won not only the FA Cup but, against all the odds, the Champions League too.
In the space of two remarkable months, Chelsea had been transformed from Premier League underachievers to, for the first time in their entire history, European champions.
The parallels between Villas-Boas and the current Manchester United manager David Moyes are stark.
Like AVB, this is Moyes’ debut campaign at one of the Premier League’s big boys. Like AVB, Moyes suffered an expected defeat in the first leg of the Champions League last 16. And just like AVB, Moyes has massively underachieved in the Premier League this season.
In fact, Moyes has recorded one point less than Villas-Boas did - from exactly the same number of games - when Chelsea owner Roman Abramovich handed the Portuguese coach his P45 on March 4 2012.
In order to start getting back on track again, the Manchester United hierarchy must admit their shortcomings - with regards to appointing Sir Alex Ferguson’s successor too hastily at the end of last season - and relieve David Moyes of his duties at Old Trafford.
It’s clear that the Scot lost the dressing room some time ago - the players simply aren’t playing for him which, although disgraceful, can only be resolved in one way.
Much has been made of the fact that Moyes has broken a succession of records - all bad, none good - this season, and this spiral of negativity will continue for as long as the beleaguered Scot and his inept coaching staff are still at the club.
The Manchester United faithful have helped to make the job as comfortable as possible for him ever since he first arrived at the club, with one particular banner at Old Trafford hailing him as “The Chosen One”.
But, despite this, Moyes has still managed to get so many things so badly wrong.
His coaching methods have been described as prehistoric, his pre and post-match interviews contain the same cliched nonsense and United fans have, understandably, just about had enough.
Last night’s 2-0 defeat to Olymapiacos was the straw that broke the camel’s back.
Manchester United don’t have a reputation for sacking managers because Sir Alex Ferguson was at the helm for two-and-a-half decades.
But things change and mistakes are made.
United, it seems, made a monumental mistake by appointing Moyes.