Young has vowed to get it right at Cardiff Blues

The 48-3 loss to Leeds ended the Blues' European campaign at the first hurdle, despite being draw in the weakest pool.

Young has received the full backing of Blues chairman Peter Thomas, but many fans have called for the coach to quit.

"Two weeks ago I had taps on the back, this week I'll have knives in my back," Young told BBC Wales Sport.

"I've just got to get on with the job. I was looking for a reaction from my players [against Leeds], but I didn't get it.

I'm certainly not going to get rid of him Dai Young. We are damn lucky to have him Blues chairman Peter Thomas

"But you've got to give Leeds a lot of credit. They totally hammered us at the breakdown.

"The slowed the ball down, and if they didn't slow it down they turned it over.

"We totally lacked any cutting edge and we looked unable to break their line throughout the 85 minutes."

With two games to go, the Blues were top of Pool Two and were looking at qualifying as group winners or as one of the two best runner's-up.

But two hugely disappointing displays brought two heavy defeats and ended Wales' hopes of having any representatives in the last eight.

"We never said we were the finished article," Young stressed.

"The media took that on and run with it. It's the same team that won convincingly at Ospreys, and beat the Dragons convincingly.

For the sake of the pride of our city and our rugby team, both Dai and Rhys must be replaced with immediate effect. From CardiffBlueAllOver Join the Scrum V debate

"But when we step up a level there are still a lot of lessons to be learned."

The Blues, who qualified for the competition via a second-chance play-off, could hardly believe their luck when the draw was made in June.

They looked like Wales' most likely qualifiers after avoiding European rugby's big powerhouses.

Chairman Thomas says failure to qualify is a "huge disappointment", but refused to lay the blame at Young's door.

"We are very, very lucky to have someone like Dai Young," Thomas told BBC Wales Sport.

"He could walk out of the Blues and get into a top side in Europe anywhere.

"I'm certainly not going to get rid of him Dai Young. We are damn lucky to have him. No-one works harder than him.