Profile: Ken MacQuarrie
When Tony Hall needed someone to investigate Jeremy Clarkson's attack on his producer, he looked north and summoned Ken MacQuarrie, the calm and reserved Director of BBC Scotland.
As an experienced member of the Editorial Standards Committee, MacQuarrie was an obvious choice. His terse report sealed Clarkson's exit. What the Top Gear presenter made of the enigmatic Scot, his polar opposite, remains the stuff of speculation.