David Moyes has become a stalwart at Everton over the last decade.
Moyes' possible departure from Everton would create a massive headache for chairman Bill Kenwright. Moyes has turned Everton into one of the top teams in the England ,even if he has been unable to guide the club to the elite level.
Everton have finished seventh for a few years in a row which is amazing given the resources Moyes has available to him. It is going to be tough for any new manager to match the consistency of the Scotsman.
Should Moyes move on, Everton will need a manager who can coax the most out of his players, while being astute in the transfer market. There is going to be little room for error at Everton because of the club's precarious financial situation.
This is not to say Everton is a bad job—far from it. The club have a loyal fan base and a track record of success in recent times. Most of Everton's problems are off the pitch.
The team desperately needs a new stadium and new ownership. Neither of these seem to be coming in the near future, however.
Here are six candidates to replace David Moyes at Everton, should the Scot ever be offered to take the reigns at Old Trafford.
Alan Curbishley has not found employment since being sacked at West Ham in 2008.
Alan Curbishley is a very good manager who seems more concerned about finding the right situation than jumping back into work immediately.
The former Charlton Athletic boss has instead focused on television work. He showed interested in the Wolves opening earlier this year, but the club would not meet his demands for a long term contract.
Everton would be a near perfect fit for Curbishley. He has experience working on a limited budget and being able to put together side that is a cohesive unit.
He was able to consolidate Charlton's status as a Premier League outfit and did not deserved to be sacked at West Ham. It would be hard to find an available manager with a better CV who would be willing to take over at Everton.
The fact he has not managed in four years is worrying but it is not as if he has been away from the game completely. He could probably jump right in and maintain the work Moyes has already put in.
Neil Lennon has endured many ups and downs during his tenure at Celtic.
Neil Lennon would certainly be a dark horse for landing the potential vacancy at Everton, but one that should not be completely dismissed.
His demeanor is certainly much different from that of Moyes, but maybe that is what the players need. After a decade of Moyes, it could be the perfect time to shake things up.
One gripe Everton fans have had about Moyes is the inability of the club to get over the glass ceiling they have hit. Lennon would certainly bring ambition to Everton.
Lennon's credentials are not great. Success in the SPL is not exactly a barometer for how a manager will perform in England.
There is something about Lennon, however, that makes one believe he could be the spark plug the Toffees need to rejuvenate the entire club. His energy and passion would be welcomed additions to the blue half of Liverpool.
Ian Holloway has rebuilt his reputation during his stint at Blackpool.
Ian Holloway deserve a chance with a bigger club. Apart from the dreadful stint at Leicester, he has shown himself to be an adept manager.
His personality and style of football would also be welcome additions at Goodison Park. No offense to the pragmatic and diplomatic Moyes, but Holloway is one of the most interesting and entertaining characters in football.
It would also be exciting to see what he could do with an Everton side that has a fair bit of talent. Blackpool's spell in the top flight saw Holloway's team play some fantastic football with players who were not the most talented.
Everton would be taking a gamble by hiring a wild card like Holloway. However, there is certainly some upside by giving a manager like him a chance.
Alan Pardew has taken Newcastle from a very conservative side to one that is balanced. Pardew has his teams playing some lovely stuff but not at the sake of leaving the team vulnerable at the back.
Holloway would need to tone down his gung-ho philosophy just a bit. There is no reason to think he could not have similar success to Pardew if given the chance at Everton.
Chris Hughton has enhanced his reputation during his tenure at Birmingham City.
If there is one manager who knows how to navigate tricky boardrooms and financial restraints, it is Chris Hughton.
The former Tottenham defender's spell at Newcastle was a masterful one, as he guided the club back into the Premier League despite the farcical circumstances surrounding the club.
Hughton landed at Birmingham City after being sacked somewhat unfairly at Newcastle. He has showed skill in guiding the Blues into the playoffs, despite have to sell or release numerous players.
There is no reason to think he could not continue his success at Everton. The uncertain situation at Everton would not be a problem for Hughton to deal with.
Like Moyes, Hughton seems to get his players to ignore off the pitch problems to focus on the tasks at hand. It is a unique ability not all managers can do.
He is not the most glamorous pick, but Hughton is certainly a manager who keep Everton in the top half of the table.
Duncan Ferguson is a legend at Everton.
Duncan Ferguson would be a fantastic hire as manager of Everton.
Not for Everton fans so much, but for neutrals who want to see the hot tempered big man lose his cool in the dugout of Goodison Park.
The Scot was never one to hold his anger in. It would be interesting to see how Ferguson would react to players misplacing passes or the opposition diving.
In reality, Ferguson is working with the youth academy at Everton and earning his coaching badges. There could be a day when the man who once single-handily fought off two burglars becomes an actual a manager.
It would certainly make the post match handshake a lot interesting as Ferguson towers over his intimidated counterpart.
The Neville brothers would be the perfect fit for Everton.
It would be extremely unpopular but a Neville brothers management team would be interesting.
Phil Neville has managed to win over the crowd at Goodison Park with his performances. Fans would have to be persuaded to accept Gary Neville, but he and the Everton faithful do have one thing in common—an undying hatred of Liverpool.
Everton would be hard pressed to find two people more knowledgeable of football. They may not have experience but they certainly have the passion to succeed.
The real winner in this hiring would be the fans who watch the EPL on television. They would no longer be subjected to Gary Neville's awful commentary during matches. Sooner the eldest Neville is off television, the better.