Sir Alex Ferguson spent 26 years in charge at Manchester United, winning 13 Premier League titles and two Champions League trophies.
Widely considered to be the greatest coach in the history of English football, the legendary Scottish manager retired in 2013 and appointed Everton boss David 'The Chosen One' Moyes as his successor.
Moyes struggled badly in the Old Trafford hotseat and - having lost 3-0 at home to Liverpool - was sacked in April 2014.
Former Chelsea boss Jose Mourinho is now the man at the helm following Louis van Gaal's underwhelming two-year spell in charge.
The glory days under Ferguson are yet to return but Mourinho looks the most likely of his successors to deliver success.
Despite finishing the season in 6th, the Portuguese coach won the EFL Cup and the Europa League in his first season in charge.
Manchester United right-back Gary Neville spent his whole career playing under Ferguson and undoubtedly has some amazing dressing room stories.
Now a pundit on Sky Sports, the former England international sat down with his former foe Jamie Carragher on 'Gary Neville's Soccerbox'.
Neville told Carragher that Anfield was typically the stadium where his manager would get the most angry - Ferguson did famously make it his mission to knock Liverpool "off their f***ing perch."
"People talk about the hairdryer and it never happened that much to be honest with you during a season," said Neville. "But the most consistent place you would see it was Anfield - at half-time or the end of the game.
"He could not stand losing at Anfield - and if we won there, it didn't matter how we played - it was like the best thing in the world."
"The worst I've ever seen him consistently was at Anfield if we were losing at half-time or at the end of the game.
"He'd sit there unmoved in the dressing room at the end of the game while everyone was getting showered for 25 minutes. Just not moving."
It sounds like an incredibly painful 25 minutes for the United players who had just been beaten by their arch-rivals.
Ferguson lived and breathed Manchester United and his mentality was unquestionably a major reason for the club's unrivalled success.