Baroness Sarah Hogg, senior adviser to the FSA, will join the board of the Treasury today along with as many as 40 new directors.
Hogg, who chairs the Financial Reporting Council as well as sitting on the boards of companies such as BG group, is to become the lead director at the Treasury.
The directors will scrutinise Whitehall procurement processes and advise on back office issues, Sky News reports.
View from the front row
Project Libra unveiled
Including SJP and investment trusts
Spent two years at Sanlam
Will also assess FCA's actions