LEE Clark could not hide his fury after watching his most experienced side fluff their lines at the Reebok.

The Birmingham boss threatened to drop his biggest names following a 10th defeat of the season, which leaves the Midlanders 20th in the Championship table.

“I’ll go back to having seven teenagers in my line-up,” he said. “I’ll play 11.

“These players have had 25 games but that’s enough time to do the business.”

Perhaps Birmingham’s biggest name, and most certainly their tallest, Nikola Zigic, also incurred the manager’s wrath after picking up two bookings within 60 seconds of each other at the end of the last game for both sides of 2012.

“It’s not professional is it? It isn’t what an experienced player should be doing,” he said.

“I understood his frustration. The first one was silly, a kick from the goalkeeper, but to do it so quickly afterwards, we’ll obviously miss him.”

Clark reckons the battle was won and lost in midfield.

“We didn’t play well at all,” he said. “It was our most inept performance for many weeks.

“We allowed (Jay) Spearing and (Keith) Andrews to dictate the game, which was what we had planned not to let them do.

“I’m absolutely furious with that performance today and I’ll be working hard to address it.”