"I cannot remember such a poor performance in the four years I've been here as manager," Bruce said after the 3-0 home defeat on Tuesday night. "It was a horror show and I take full responsibility for the result. I picked the team and played some players out of position. "But players are coming back from long-term injuries and I want to protect them as much as I can. "There was some poor stuff played and there were too many players not fully fit and running on an empty tank. "What I can say is that we will produce a much better performance on Saturday at West Brom. "But it does not help losing 3-0 at home. Viduka's second was a wonder goal and as good as you will ever see."