Derbyshire have become the first English cricket county to employ a specialist Twenty20 head coach appointing former New Zealand coach and captain John Wright to the role.
Wright is also a former Derbyshire player having first played for the county 40 years ago.
Wright, 62, is steeped in experience with coaching spells for India for five years from 2000 and New Zealand, as well as guiding Mumbai Indians to the IPL title in 2013.
He currently has a scouting role with Mumbai Indians.
Specialist T20 coaches have previously been unattractive to county sides as the competition is spread over three months but it will now be played in a shorter block next year.
Derbyshire had a dismal 2016 season failing to win a single T20 game.
Wright, who scored almost 15,000 runs for Derbyshire between 1977 and 1988, will join the county in mid-June.
"We could not have secured anybody with higher pedigree than John to fill this new role," said Derbyshire high performance director Kim Barnett.
"He has won the IPL with the Mumbai Indians, been an international coach and was a great player at Derbyshire.
"I could not be more pleased to get him back on board here and work with him. He is a fantastic strategist and will give us a lot of expertise technically and tactically."