GB Athletics chief Neil Black ignoring detractors after six medals at London 2017

British Athletics' performance director Neil Black has told his critics they can keep on "chatting s---" following the World Championships.

The athletics chief launched a passionate defence of Great Britain's performance after they hit their target, despite Sir Mo Farah being the only individual to win medals.

Every relay squad reached the podium over the weekend -- with the men's 4x100 metres squad becoming world champions -- as the hosts claimed six medals, two of them being Farah's 10,000m gold and 5,000m silver.

It ensured they scraped their medal target of six-to-eight but it was still met with criticism from former Olympic 400m champion Michael Johnson and Jessica Ennis-Hill's former coach Toni Minichiello.

But Black will ignore any detractors and insisted he will plough on with the job. He said: "People say and do what they do. I haven't read or looked at anything -- that's my style and way of protecting myself.

"But I'm aware that people will be chatting s--- everywhere and saying all sorts of things. That's cool. Say what you want. Do what you want. We'll carry on performing and that's where the motivation comes from.

"Yes, of course you are nervous, you are apprehensive. And you are aware of people's views. But we were massively confident -- it was just a matter of how many relay medals we would win, how many close calls there would be in individual events.

"The relays have come up trumps, Mo came up trumps. A load of other people came so close. Next year and in 2019/2020 it will probably be a different combination but we all can see that there is a group of young people who have stepped up, gone so close and are ready to step up in the future.

"All logic would say to carry on with a similar approach. You apply a consistent progression to these athletes and every one of those guys who have finished in the top eight and finished fourth are capable over the next two or three years of actually stepping up.

"I understand that people will go, 'who is going to replace Mo and Greg (Rutherford) and Jess?' We are looking to replace them. We are looking to produce a team of athletes who are capable of performing at this level.

"I think you have seen the beginnings of those. We have three years to Tokyo. Tokyo is our primary aim. So, we are really generally very confident."

With the squad in a transitional phase, Farah retires from the track this month, they had five fourth-placed finishes, including Laura Muir in the 1500m and Nethaneel Mitchell-Blake in the 200m.

Black, though, is not prepared to lower the targets and thinks they are fair.

"We are not looking for comfort to be honest. Obviously you look back and reflect on the post-Olympic and Paralympic year. You look back at the trends," he said.

"Before the start of the competition I was thinking: 'did we get carried away with a bit of euphoria?' But actually you step back and say: 'we have brilliant talent in this country'.

"We have brilliant coaches, supporting those athletes. Coaches being developed, supporting those athletes. The targets are about right. We should be performing at that level."