The 52-year-old coach was sacked by Reading in March after a string of poor results following their promotion to the Premier League, but has made a quick return to management
Neil Warnock resigned at the start of April after a run of six games without a victory left them short of the play-off places and the west Yorkshire outfit currently sit in 17th place in the Championship table, just five points above the relegation zone with five games of the campaign left to play.
|MCDERMOTT APPOINTED LEEDS MANAGER
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“He is a man with a proven track record of success and shares our vision of the best way to return long term and sustainable success to this great football club.
“Obviously the immediate aim is a return as soon as possible to the Premiership. Brian's success in taking Reading to the Premiership last year was a key factor in our decision to hire him.”
Warnock backed either McDermott or former Bolton boss Owen Coyle for the job recently, stating that it is not a role for a young manager.
"People like Brian McDermott would do a fabulous job, and Owen Coyle," Warnock told BBC Radio 5 Live.
"There's quite a number of [suitable] managers and I think there'll be a few more in the next few weeks. I do not think it is a job for a young man.
"It is a perfect role for an experienced manager like Brian McDermott or Owen Coyle."
McDermott takes immediate charge of the team and will be in the dugout for the Elland Road outfit’s crucial Yorkshire derby clash against Sheffield Wednesday on Saturday.