UK Athletics head coach Charles van Commenee will today begin the search for Britain’s “missing medal” ahead of next year’s Olympic Games in London.

Van Commenee has already set a target of eight medals - including one gold - to be won on home soil in 11 months’ time, one more than the target achieved at the World Championships in Daegu.

And the Dutchman now has a better idea of where that extra medal is likely to come from after nine days of competition in South Korea ended on a high note with Mo Farah’s gold in the 5,000 metres and Phillips Idowu’s silver in the triple jump.

He said: “When we hit the target I’m happy, very happy. I go home as a satisfied head coach. Job done here. I know work has to be done, but we knew that already.”

But he singled out some under-performing medal hopefuls along the way, most notably the men’s relay teams - who both suffered dreadful finals - and 800m runner Jenny Meadows, who failed to even reach that stage.

Van Commenee said: “Of course I’m disappointed, especially in the jumps and the men’s relays.

“The 4x4 was appalling, no real effort, unforgivable really, and of course we expected an athlete in the 800m final for women.”