Overview

• The 47-year-old joins Tandy's staff full time after leading Wales on an interim basis earlier this year.
• Assistants Corniel van Zyl, Gethin Jenkins, Jonny Goodridge and Scott Andrews will oversee Cardiff in the short term.
• The departure lands five days before Cardiff's United Rugby Championship opener against the Lions at Cardiff Arms Park.
• Tandy, who began as head coach on 1 September, has already brought in Danny Wilson and praised Sherratt's fit with the squad.
• Cardiff has launched a review to hire a long-term successor, with leaders acknowledging the timing is not ideal but pointing to progress under Sherratt.