Following a fair and open competition, John Carroll has been confirmed in his role as Chief Operating Officer (COO) of the SFO. He will be joined by Michelle Crotty, who has been appointed as Chief Capability Officer (CCO).

https://www.sfo.gov.uk/2020/05/28/michelle-crotty-appointed-chief-capability-officer-as-john-carroll-becomes-permanent-chief-operating-officer/