West Bromwich Albion have sacked head coach Darren Moore after their draw at home to struggling Ipswich Town.
Saturday's stalemate left them fourth in the Championship and nine points off the automatic promotion places.
"This has been an enormously difficult decision for the club," chief executive Mark Jenkins said in a statement.
"After discussions with our owners, the difficult decision to make a change was taken. Darren's dedication over the last 12 months is not underestimated and there will always be a welcome for him at the Hawthorns.
"But we have to place the club's best interests at the forefront of our thinking and we must do everything we can to try to deliver the promotion we have targeted."
First-team coach James Shan will now take temporary charge and BBC Sport understands the club hope to have a replacement in for Wednesday's game against Swansea.
Moore's assistants Graeme Jones and Wayne Jacobs have also been sacked.
Former Fulham boss Slavisa Jokanovic and ex-Huddersfield manager David Wagner both fit the profile of potential candidates. The pair have got teams promoted out of the Championship through the play-offs and are now out of work.
As a player, Moore turned out for Albion from 2001 until 2006, twice helping them win promotion to the Premier League.
After taking over from Pardew he oversaw 1-0 victories at Manchester United and Newcastle United, earning the Premier League's Manager of the Month award for April.
Although he won 11 points from a possible 18, he could not halt their relegation from the top flight.
What has gone wrong for West Brom?
After their surprise defeat by Bolton Wanderers on the opening day, a run of seven wins from their first 12 Championship matches moved the Baggies up to second in October.
After a strong first half to their Championship campaign, Albion have won just four of their past 12 league games, and have suffered defeats by promotion rivals Middlesbrough, Sheffield United and Leeds United.
A leaky defence has ultimately dampened their push for an immediate return to the Premier League, Albion having conceded more goals than any other team in the top eight.
Moore's side have relied heavily on goals from attacking pair Jay Rodriguez and Dwight Gayle, who have scored 33 of their 68 goals between them.
Their recent dip in form has coincided with loanee Harvey Barnes being recalled by Leicester City, after contributing nine goals during an influential half-season stay.
The Baggies' performances at home have also become an issue. They have won just one of their past nine league games at The Hawthorns, including Saturday's draw against the division's bottom team.