Liam Rosenior has been relieved of his duties as interim manager at Derby.
It is understood Rosenior is still employed by the club but the Rams are now searching for a permanent successor to Wayne Rooney.
The 38-year-old was given the job on a temporary basis following Rooney's decision to quit in the summer after their relegation to League One.
Rosenior's final game in charge of the club saw them come from behind to beat Wycombe 2-1 on Saturday.
The Rams are currently seventh in the third tier with 14 points from nine matches, seven points behind leaders Ipswich Town.