Division Two outfit Barnsley have sacked manager Gudjon Thordarson and replaced him with former Nottingham Forest boss Paul Hart.
Hart was linked with the Leeds job while at Nottingham Forest
The struggling Oakwell side have taken just eight points from a possible 33 in the league since Christmas.
"Despite the fact that Gudjon started the season in difficult circumstances, any manager is always judged on results," said a Barnsley statement.
"We have acted now to give us time to try to get back into the play-offs."
Thordarson took over as Tykes boss in June last year when California-based businessman Sean Lewis bought the club, though Lewis departed when the takeover was not ratified by the Football League.
Hart was sacked at Forest in January despite having led them to the Division One play-offs last season.
The former Leeds Academy coach links up once again with former Elland Road chief Peter Ridsdale, who is chairman of Barnsley.