Chesterfield chief executive Chris Turner has insisted the club remains committed to its academy.
In a mass clear-out last week, six backroom staff and seven players left the club.
The departures included Tommy Wright, Mark Crossley, John Dungworth, Kurt McDermott and long-serving youth coaches Dave Bentley and Mark Jules.
It brought an end to Bentley’s 14-year association with the club while Jules, who also played for the Spireites, had been at the club for 17 years.
Turner wanted to allay concerns regarding the future of the academy.
He said: “We’re as committed as ever to the academy and we want to see that grow and produce players for the youth team.
“We obviously then want those players to kick on and join the first-team squad.
“We’ve also got a fantastic development squad and, together with the academy, that will take the club further forward.
He added: “Dave and Mark have been here a long time and they’ve done a great job for the club. We felt it was time for a change, which is nothing to do with the individuals.
“It’s time to move on and bring change to the whole football structure.”