Nic Corrigan described his time with Chester as ‘very special’ following his surprise departure from Hare Lane.
Director of rugby Corrigan left the National League Two North club 24 hours before the home match with Hull Ionians on Saturday, which ended in a 35-14 defeat.
He has taken the post of lead coach and performance consultant at Cinderford, who are struggling in National League One.
Dave Craven, who had been head coach prior to Corrigan’s arrival in summer 2012, has replaced him as director of rugby.
Ex-England international and Sale Sharks and Wasps hooker Phil Greening has been added to the coaching team too.
Corrigan said: “I have been incredibly happy at Chester and am incredibly proud to have been part of this club.
“Results aside, the player development programme has focused on supporting young players achieving great things within RFU structures and to have played a small role in player lives to achieve in their own way is a honour.
“Whilst sad to be leaving the future ahead of me within the business of sport, I am looking forward to my next challenge.
“I would like to thank everyone at Chester who helped to make the past three years very special. In particular, junior age group coaches and club captain Tom Gregory.
“I would also like to thank the many people who I have had the pleasure of getting to know and have welcomed me into their family homes and lives away from the club.
“Finally I would like to thank personally the support staff over the last three seasons and I wish them all well for the future careers.”
Craven took charge for the visit of Ionians at the weekend and his side went into the break level at 14-14 before tailing off in the second half.
Ionians took the lead on two minutes with a Joe Sanders score, although Isaac Green missed the conversion. Green landed a three-pointer in the sixth minute to give the visitors an 8-0 lead but two Luke Grey penalties brought Chester back to within two points.
Ionians responded with two penalties from the boot of Green to move 14-6 up on 23 minutes but the lead was soon trimmed.
Guy Ford drove over the line and although Grey could not land the conversion, he did knock over a penalty to make the half time score 14-14.
Chester could not maintain the challenge in the second period and Ionians took charge with 21 unanswered points.
Tries for Chris Reakes and Adam Thomas, a conversion for James Ferguson and three more Green penalties sealed the win and took Ionians top of the table.
Chester stay third and host Leicester Lions on Saturday (3pm).
Chairman Jonny Beckwith thanked Corrigan for his contribution and said Craven and Greening were the right choice to take the club forward.
He said: “Both appointments bring great coaching experience and signal our commitment to provide first class coaching at Chester.
“Nic’s time with the club has seen us achieve level four rugby and he has helped to develop the club’s coaching and player development structure which we see as a foundation for our continued success. We wish Nic well in his future career.”
Chester 2nds lost 17-14 at home to Sandbach 2nds in the Bateman BMW Premier League, Christleton suffered a narrow 17-14 loss at University of Liverpool Veterans in Division Three South and Helsby crashed to a 64-0 defeat at Wallasey in South Lancs and Cheshire Three.