Powell will remain with Xero through October 31.
Grech will be responsible for all go-to-market functions including global sales operations, regional managing directors and leadership, customer experience, ecosystem and partnerships and revenue operations.
Based in the San Francisco, Calif., Bay area, she was previously chief operating officer of Recharge from July 2022 through March 2023. Immediately before that, she spent four-and-a-half years with Square where she was global head of sales from July 18 through December 2021.