Belper Town have sacked boss Aaron Webster and assistant Lee Williamson.
It follows a massive slump in form which has seen the Nailers win just five of their 25 matches since the duo took charge.
The league campaign also ended with six straight defeats.
Club Chairman, Alan Benfield said: “We really hoped that Aaron and Lee would make a success of their first venture in management, but sadly team strengthening, performances and results have all deteriorated since their appointments.
“They relied heavily on a youthful approach to team selection but the evidence, with a couple of exceptions, was that young players loaned from academies elsewhere cannot be a match for more experienced players in the Northern Premier League.
“It’s always regrettable when clubs have to make these difficult decisions, but the atmosphere amongst supporters at the latter end of the season has told the whole sorry story.
“Supporters have voted with their feet in these games, with attendances dropping alarmingly as a number of heavy defeats sucked the enthusiasm out of the club.
“Despite all this, we wish Aaron and Lee all the best in the future and hope that their next project will be less problematic than their experience here at the Marston’s Stadium.”
The club will now commence the process of seeking out a new management team for next season and applications for the post are invited from individuals with experience of managing at Steps 3 or 4 of the National League System, in preparation for the new campaign in August.
Applications, ideally including a CV, should be made via email to the BTFC club secretary, Ian Wright at firstname.lastname@example.org