Nottingham Forest can confirm that Jack Lester has left the Club to join Chesterfield as first-team manager.
Academy manager Gary Brazil has spoken of the opportunity that awaits Jack who leaves with his full blessing.
He said: "This is a wonderful opportunity for Jack who I know is keen to step into a first-team management role.
"I know this has been a difficult decision for him as he has a strong affiliation with Forest. However, we both feel this is an ideal opportunity for him to make the step up and on behalf of everyone at the Club I would like to wish him the best of luck in his new role."
Lester played close to 200 games in two spells with The Reds and has managed both the Under 18s and Under 23s in the Club's academy.
He said: "It is a Club that has played a big part in my life. As a player I had some amazing times here and more recently as a coach it has been one of the most rewarding jobs I have been in, working in the academy and bringing players through.
"It is a lot more rewarding than you think it would be. Seeing players in the first team is just as special as when you played in it yourself.
"It has been fantastic and a wonderful part of my life which has been a great apprenticeship for what I am going on to do.
"I would like to thank Gary Brazil and all the staff in the academy for what has been an unforgettable experience. There are great people working throughout the academy and I've enjoyed growing our relationship over the years.
"I wish the Club all the best and I would like to thank the Club for everything they have given me."