The Persuasionists - Being Creative

Sitcom. HHH&H has slipped down the ad agency creativity rankings, so Clive threatens to demote anyone who can't prove they're creative, much to Billy's annoyance - his job title actually includes the word 'creative'. Greg, Emma and Keaton must compete to avoid a transfer to the leaflets department - can an old workmate of Emma's from rival agency Bum provide a creative solution?