Parting ways with managers has become a key part of life in the professional game as clubs lean towards a 'grass is greener' approach to on-field matters.
Watford were the first team to jump this season and got rid of Xisco Munoz at the start of October.
Steve Bruce was then sacked quickly after the takeover that saw Newcastle become the talk of the town and Eddie Howe has been drafted in.
Nuno Espirito Santo was shown the door by Tottenham recently and was replaced by Antonio Conte.
And last weekend saw two more departures as Norwich sacked Daniel Farke and Dean Smith left Aston Villa.
That has seen fresh faces as Eddie Howe, Steven Gerrard and Smith were reintroduced as managers during the international break.
Managers across the league will be looking over their shoulders as we approach the hectic festive period with one man under more pressure than most.
Solskjaer has endured a torrid few weeks at United.
The Red Devils were hammered 5-0 by Liverpool last month and were well beaten by rivals Man City before the international break.
The Norwegian is now the odds-on favourite to be the next boss axed following a humiliating 4-1 defeat away to Watford.
Despite that result, Hornets chief Claudio Ranieri is yet to make his job safe while Everton chief Rafa Benitez is under pressure too.
At the other end of the list are Liverpool boss Jurgen Klopp, Chelsea's Thomas Tuchel and City gaffer Pep Guardiola who are near-certainties to keep hold of their prestigious roles.
David Moyes' heroics at West Ham have also seen his job become secure.