England bowler Dominic Cork and former Derbyshire has returned to the county because their head trainer for the 20-19 t-20 Blast year old.
The 47-year-old has been the club t-20 bowling trainer at the last two seasons and takes over from John Wright.
Cork captained Derbyshire throughout 1-3 years with the county and won the t-20 Blast with Hampshire as they beat Somerset from the 2010 final.
“The opportunity was too good to miss and I’m delighted to return,” he said.
“The club is dear to my own soul – it’s where I started my career and I’ve been grateful to work along side John Wright at the previous couple of years whilst the team has progressed.
“We have got players here who are able to win Twenty20 matches and we’ve already upset the odds on lots of occasions”