Daniel Vettori will return to Edgbaston this summer after being appointed as head coach by Birmingham Phoenix.
The New Zealander - who spent one season at Warwickshire as a player in 2006 - has been upgraded to the role and will replace Andrew McDonald.
Vettori was the interim head coach last year after McDonald was unable to travel to England due to 'scheduling issues caused by the pandemic'.
Vettori inspired the Phoenix to the final of the inaugural competition last season before losing out to Southern Brave at Lord's.
McDonald will not attend this year's competition again after being selected as the new Australia men's team head coach. He replaces Justin Langer - who turned down a short-term deal to remain as boss.
The 40-year-old - who was assistant to Langer during his tenure - will now look to build on the Baggy Green's recent success, which included a 4-0 win over England in the Ashes and T20 World Cup glory in 2021.
Vettori - the most capped Test player in New Zealand's history (112) - said it was a 'very easy decision' to accept the Phoenix's offer.
He told Warwickshire's website: "I absolutely loved my time working with the Birmingham Phoenix squad as head coach last summer, so taking on the role on a permanent basis was a very easy decision.
"We made great strides in the first season and all coaches and players loved seeing the tournament develop, and we had such great support every time that we took to the field at Edgbaston."
Under Vettori's leadership, the Phoenix reached the final of the inaugural competition before losing out to Southern Brave at Lord's.
"We want to go one better," he added. "It's a tough competition, but we've retained well and recruited some excellent players through the draft.
"We look an even stronger outfit than in 2021 and hopefully we can continue to entertain the Birmingham Phoenix fans who get behind us."