When former Manchester United manager Alex Ferguson steps up to the lectern to deliver the first of his Harvard Business School lectures in May, he won’t be short of material.
He knows all about the art of building winning teams, how to deal with the pressure of the media and, of course, the secrets of time management, more commonly known in football circles as "Fergie Time."
Ferguson retired last May after claiming a 13th English Premier League title with United - the 49th and final trophy of an illustrious 39-year career in football management.
It’s a record of unparalleled achievement, but barely a year after the Scot stepped down it appears there is one gaping hole in the Ferguson management repertoire - successful succession planning.
United’s sacking of David Moyes must be the bitterest of pills for Ferguson to swallow. Not just because he had handpicked Moyes as the “Chosen One,” but also because of the mess the club now finds itself in.
Out of the European Champions League group stages until September 2015 at the earliest, more pressingly United’s squad needs a major overhaul - arguably another unwanted legacy from the Ferguson era.
The departure in July 2012 of Frenchman Paul Pogba, rapidly emerging as one of Europe’s most talented midfielders at Juventus, is looking increasingly like the steal of the 21st century.
Just as importantly, United's next coach needs to establish a coherent playing philosophy, which Moyes never quite managed to do.
“Pep Guardiola or Jurgen Klopp were not available last summer, but hypothetically: the kind of football that they advocate is arguably more progressive, fluid and unpredictable than the kind that Man Utd have played this season,” Tor-Kristian Karlsen, former chief executive of French club Monaco, told CNN.
“As regards to Jose Mourinho – now Chelsea manager - I'm surprised Manchester United didn't make any endeavors to hire him as Ferguson’s successor. I would imagine that he'd have been more assertive in the transfer market and probably attracted more respect from the players.”
It is arguable, given Ferguson’s ability to hoover up so many trophies, that no-one could have successfully succeeded him, but the speed of the decline has been a surprise.
“I don't think anyone could ever imagine Manchester United falling out of the top four and getting knocked out of two cups at home to reasonably weak opposition,” added Karlsen, who is now working as a consultant in the football industry, including advising club owners and boards on succession planning.
But the way Moyes struggled with the task of succeeding his fellow Scot begs the question as to whether United has become too big a club for one man to successfully run, given Ferguson’s legacy.
Should the United board have insisted upon a more radical overhaul of the club’s football operation when Ferguson stepped down?
"What you have to remember is that Alex Ferguson evolved into that role over 26 years,” former Fulham manager Rene Meulensteen, who worked with Ferguson in various coaching capacities for over a decade at Old Trafford, told CNN.
“He was completely embedded in the club. He was in a completely different position to David Moyes,” added the Dutchman.
“Maybe in hindsight David probably underestimated the magnitude of the position. I tried to explain to David that it would be like going from steering a yacht to a cruise liner.
"Ferguson adapted to the role - he learned how to delegate and trust. He was very good at stepping back to see the bigger picture and making sure the cruise liner stayed on course. When you manage other clubs you are probably able to be more hands-on.”
At Champions League holders Bayern Munich, the team’s former star striker Karl-Heinz Rummenigge works in the boardroom, while another ex-Germany international Matthias Sammer is deployed as the club’s sporting director.
It is a model that has helped make Bayern probably the best club in the world at the moment.
“I honestly believe that a club of Manchester United's size and stature is too big to rest on the shoulders of one man,” said Karlsen. “Ferguson was able to build his empire over years and years, consolidating his power gradually.
“That simply isn't possible in today's reality. I'm surprised Man Utd haven't adapted a more continental management structure.”
Meanwhile the hunt is on for Moyes’ successor, with Ferguson reportedly again involved in helping find the right man for the job.
With Klopp and Guardiola appearing happy at Borussia Dortmund and Munich respectively, Netherlands coach Louis van Gaal and Real Madrid boss Carlo Ancelotti are reportedly leading contenders to take charge at Old Trafford.
“The decision on the next manager is crucial,” said Karlsen. “If they manage to get that appointment right and spend their resources wisely in the summer, Manchester United might even be back chasing titles next season.
“It's maybe the biggest club in the world and will have to do a lot of things wrong in order to stay unsuccessful over a long period of time.”
Karlsen has one final thought as to a candidate the United board might want to put on their shortlist - Italian coach Luciano Spalletti, who has most recently managed Zenit St. Petersburg and Roma.
“Spalletti's one of the greatest coaches in world football,” said Karlsen. “One who is able to improve individual players and teach his teams to play according to sophisticated attacking patterns. One day he will take charge of a big club, I have no doubt.”