Another month goes by and yet more FTSE 100 companies announce they are parting ways with their current auditor. During November, drinks giant Diageo, security group G4S and the part-nationalised bank RBS all announced they would be changing auditors.

Diageo called time on its 17-year relationship with KPMG, and opted instead for PwC. PwC also took over as auditor to G4S from KPMG. And at RBS, Deloitte’s 14 year tenure ended as EY was chosen to take over in 2016.

Readers of Accountancy’s FTSE 100 and FTSE 250 auditor surveys will be only too aware of how much the tender market has gone into overdrive during the last two years as the realisation has dawned on both companies and their auditors that the competition and choice debate had reached its climax.