Phil McNulty, chief football writer at BBC Sport:
When David Moyes left Everton for an ill-fated move to Manchester United in 2013, he left behind a club that was a model of stability.
Moyes had spent 11 years at Goodison Park and turned Everton from a Premier League second division team into a European regular, even reaching the Champions League qualifying phase in 2005.
The Scot had virtually full control of football affairs, supported by a chairman, Bill Kenwright, who was grateful that Moyes could achieve what he had done as manager with limited resources.
To say that Moyes will return to a different Everton should he secure a deal to replace the sacked Sean Dyche is a masterpiece of understatement.
Since Moyes moved to Old Trafford, Everton have had eight permanent managers and seven sackings. The stability and continuity that he knew was a thing of the past was changing in football's managerial landscape during this time.
Everton are still struggling at the foot of the table, as they were when they took over from Walter Smith in 2002, but they will be working with new American owners the Friedkin Group, who have already proven ruthless by sacking Dyche after just a minute have three weeks under control.
Kenwright is unlikely to show patience during the occasionally difficult times in Moyes' first term while working under a director of football in Kevin Thelwell, a situation he did not experience when he previously managed Everton and made decisions about purchase and sales itself, the decision maker for all football strategies.
Everton's position in the league may not have changed, but what Everton Moyes knew beforehand has. How he adapts to these changed circumstances will shape his immediate future and that of the club.