The New Zealander oversaw four seasons as Phoenix Head Coach, with a best finish of third in 2024, in addition to a runner-up finish in 2021 when he was interim Head Coach.
James Thomas, Birmingham Phoenix Performance Director, said: “Everybody associated with the Birmingham Phoenix thanks Dan for his hard work and dedication over the last four years.
“His prior experience of working in franchise cricket has been invaluable during the formative years of the Birmingham Phoenix and Dan leaves us in a great position to grow and progress in the years to come.
“The process of appointing a new coaching team is under way and we will make an announcement in due course.”