New boss Antonio Conte has spoken of wanting to build something at Chelsea but history suggests he may not be given enough time.
Conte is currently on tour in the United States with the Blues and taking his first steps into life as a Premier League manager.
All coaches taking their seat in the Stamford Bridge dugout know the perils of working under Roman Abramovich as the Russian is known for his itchy trigger finger.
The Premier League is one of the toughest leagues to survive in as a manager.
According to the latest figures, only half of the current top-flight managers would have been in their role a year by the time the season kicks off.
Having been Blues boss for a few weeks now, Conte has set to work preparing his squad as they battle to redeem themselves after a disappointing 2015/16 campaign.
Since Abramovich brought the club in 2003, Chelsea have had a steady stream of managers coming and going at the Bridge.
Antonio Conte leads Chelsea training in the US in pictures:
Jose Mourino’s two stints as manager are the longest under Abramovich, followed by Carlo Ancelotti’s 20-month spell as manager.
A number of bosses have served the club for no more than nine months, including Avram Grant, Luiz Felipe Scolari, Andre Villas-Boas, Roberto Di Matteo and Rafa Benitez.
Conte will need to prove to the Russian owner that he is the right man to manage the pressure and get the Blues back to the top of the league.
Arsene Wenger is the longest serving manager in the division, taking charge in 2006, and would have spent 7,256 days as Arsenal boss by the start of the season.
The Frenchman took charge of Arsenal on October 1, 1996 and will have been in the Gunners hotseat for 7,256 days by the time the 2016-17 season starts on August 13.
The Premier League’s other managers will have only been in their jobs for a combined 8,624 days by that date.
In fact, if you take out the manager with the next longest reign after Wenger then the remaining bosses will have only spent 7,223 days in their posts, 23 fewer than Wenger. That figure will change slightly though when Hull appoint a new manager.
The average manager in the division will have been there for 836 days, or 2.2 years, by the start of the season. If you don’t take Wenger into account that drops to just 479 days, or 1.3 years.
Eddie Howe has the next longest reign of any manager after Wenger.
The Bournemouth boss will have been in charge for 1,401 days when the season starts.
Sean Dyche has the next longest reign at 1,383 days followed by Mark Hughes (1,171 days) and Aitor Karanka (1,004 days).
As many as 10 of the division’s bosses though will have be in charge for fewer than 365 days.
Jürgen Klopp will only have been at Liverpool for 310 days. Swansea’s Francesco Guidolin will have managed Swansea for 208 days while Mourinho will have been the United boss for 78 days.