Dewsbury's Glenn Morrison has become the first coaching casualty of the season after the Rams announced his departure from the Kingstone Press Championship club.
Morrison, a 40-year-old Australian who played in Super League with Bradford and Wakefield, had been in charge of the Rams for almost five years but made the offer to step down to club chairman Mark Sawyer after their 56-18 defeat at Bradford on Sunday.
Dewsbury are in relegation trouble after losing their first six matches of the season.
Morrison said: "I want to thank the club for the opportunity and the years I have had here.
"We have had some successful seasons that I'm proud of but unfortunately we just have not had the results required this season, and so I feel the time is right to part ways.
"I wish Mark and the club all the success in the future. It has been an honour to have coached the Dewsbury Rams."
Sawyer said: "I can only reflect positively on Glenn's near five-year tenure as head coach of Dewsbury Rams.
"He was a part-time coach who put in full-time hours and he brought some great players to the club, despite working to a limited budget.
"While results so far this season have been disappointing, it should be noted that Glenn delivered the club's highest finishing position in many years during his time with us. He leaves with our sincerest best wishes."
Dewsbury have placed assistant coaches Karl Pryce and Jonathan Schofield in temporary charge and say they will advertise for a new head coach.
