#5 David Moyes at Manchester United – 2013/14
It would be difficult for even the best managers of the world to step into Sir Alex's shoes and not show the pressure. David Moyes, who was trusted to be able to handle the mantle and transition the squad smoothly, was an unfortunate managerial casualty in this novel situation.
Manchester United won the league title on a canter in the 2012-13 season, despite the fact that their seniormost players in defence were reaching the fag end of their top form: Rio Ferdinand, Vidic, and Evra were all over 30, while Rafael was just too inconsistent to be considered a permanent starting option for United in the future.
Their problems magnified in the new season when injuries to Robin van Persie meant that United were shorn of their biggest goalscoring threat for huge swathes of the season. United posted what was to be the worst defence of the Premier League title, finishing 7th at the end of the season. David Moyes was sacked after mathematical confirmation that United would be unable to keep their Champions League participation alive in the 2014-15 season.