Nottingham Forest have sacked manager Sean O'Driscoll just hours after a 4-2 victory over Leeds United at the City Ground.
The 55-year-old took over in the summer and had steered the club to eighth in the Championship, one point adrift of the play-off positions.
The Al Hasawi family, who own Forest, highlighted inconsistency and a lower-than-expected league placing as the reason behind the sacking.
Chairman Fawaz Al Hasawi told the club's official website: "We cannot speak highly enough of Sean as a man. He was appointed at an extremely difficult time for the club and can count himself unlucky to have lost his job with the team just one point away from the top six.
"But we have a responsibility to look to the future for this great club because we have huge ambitions for it.
"We knew when we bought the club in the summer that it would take time for the players we bought in to settle but that process has taken longer than we anticipated.
"We feel we have developed a really strong squad of players, but are still searching for consistency in terms of team performance, underlined by the fact that we have not won more than two games in succession in the Championship this season.
"And with the January transfer window approaching, we feel it's the right time to make a change.
"We are looking to bring in an ambitious manager with Premier League experience."
The Al Hasawi family appointed O'Driscoll after taking the club over in July.
The former Doncaster Rovers boss was in charge for 26 matches, winning 10, drawing nine and losing seven.
Abdulaziz Al Hasawi, who was at the City Ground for the win over Leeds, added: "The timing of our decision may look a little odd after the win over Leeds, but sometimes you need to make changes with the long term future in mind.
"Sometimes those changes need to be made from a position of strength rather than weakness, and that is what we are trying to do."
O'Driscoll signed a three-year contract at the City Ground in July and quickly embarked a major overhaul of the squad that saw the arrival of players such as Billy Sharp, Adlene Guedioura and James Coppinger.
Forest began the season with a five-game unbeaten run but have since struggled to string results together and have hovered between mid-table and the fringes of the play-offs.
Are Forest right to sack Sean O'Driscoll?