A Chelsea statement confirming Rosenior’s early exit read: “Chelsea Football Club has today parted company with head coach Liam Rosenior.
“On behalf of everyone at Chelsea FC, we would like to place on record our gratitude to Liam and his staff for all their efforts during their time with the club.
“Liam has always conducted himself with the highest integrity and professionalism following his appointment midway through the season.
“This has not been a decision the club has taken lightly, however recent results and performances have fallen below the necessary standards with still so much more to play for this season. Everyone at Chelsea FC wishes Liam every success in the future.”
McFarlane was placed in temporary charge after Maresca’s departure in January and oversaw a draw against Manchester City and a defeat by Fulham, before being installed into Rosenior’s backroom staff.
Chelsea’s statement added: “Calum McFarlane will take charge of the team as interim head coach until the end of the season, with support from existing club backroom staff, as we strive to achieve European qualification and progress in the FA Cup.
“As the club works to bring stability to the head coach position, we will undertake a process of self-reflection to make the right long-term appointment.”
Other than placing himself in danger with a dreadful set of results, Rosenior made his position untenable by publicly criticising the Chelsea players.