Brian Carey has been confirmed as Dean Saunders’ assistant manager.
The former Wrexham defender, who played for the Welsh club in the Spireites’ famous 1-0 FA Cup quarter final win at Saltergate, assisted Saunders at Wrexham, Doncaster and Wolves.
He had been looking after Blackburn Rovers’ youth team in recent months.
Commenting on his appointment, Carey said: “I’m delighted to be here and I’m really looking forward to the challenge.
“Dean can ask me for an opinion and I’ll give it. He’s bubbly and enthusiastic and we have a good working relationship.
“I can see the progress that has been made here and it’s a great opportunity.
“The team did well last season and there are some solid foundations for us to build on.”
Irishman Carey was a youngster at Manchester United and he also played for Leicester City.
The Spireites will travel to Carlisle United for the first round of the Capital One Cup, with Tuesday 11th August being the most likely date.
The two clubs have twice been paired together in this competition and Chesterfield have won through on both occasions.
Back in 1964 Spireites made the long trek to Brunton Park for a third round match and triumphed 3-1 mainly due to a brace from Ralph Hunt, two months before he was killed in a car crash.
In 1993 the early rounds were two legged affairs and Spireites won at Saltergate, again 3-1, before drawing 1-1 in the away leg to earn two games with West Ham United, a tie that saw 16-year-old Kevin Davies become the youngest ever player in the competition.
Chesterfield have gone out of this competition in the first round for the last eight seasons, losing 5-3 after extra time to Huddersfield Town last term.
The 2006-07 season marked the club’s last League Cup wins; a penalty shoot-out triumph over Wolves came before significant Saltergate full house victories over Manchester City and West Ham, before going out to then top flight side Charlton Athletic on penalties.
The matches marked the coming of age of Caleb Folan and his January sale to Hull City was followed by relegation.