3) Frank de Boer (Crystal Palace) – 77 Days
The warning signs were there before Palace decided to appoint the Dutchman as Sam Allardyce’s successor in the summer of 2017.
De Boer had been sacked by Inter Milan after 85 days and he arrived at Selhurst Park tasked with changing the team’s style of play.
Needless to say that it didn’t work. De Boer lost his first four matches in charge, with his team not scoring a single goal. He was given his marching orders very quickly.
