In their first game without star man Dimitri Payet, the Hammers were dominated at White Hart Lane in what Bilic said was the worst performance of the season, and has ordered his players to eradicate sloppy mistakes.
“The feeling was the same,” he said. “I was just as upset as the players were – they were like the whole club after that loss.
“We were all disappointed and angry at the way we played and to be fair it was clear to see we weren’t good.
“Sometimes in games you can blame other things if you lose but it was only us to blame. We analysed the game afterwards. Full credit to Spurs – they played extremely well – but we helped them a lot. It was simply not acceptable and we are going to do everything to bounce back against West Brom.”
With captain Mark Noble suspended for the Sunday lunchtime clash at Upton Park – Bilic will have the choice of either on loan Barcelona midfielder Alex Song or Pedro Obiang – both of whom have just returned from injury – to fill the central midfield void.
Although West Ham have taken just one point in their last three games, conceding seven goals, Bilic refuses to acknowledge there is a lack of confidence among the West Ham camp.
“I am confident. It’s all about pattern. You can talk about dropping in form for that you need a longer pattern,” said Bilic.
“We didn’t drop form against Spurs – we dropped performances. I agree that the fans may feel a bit edgy after the performance against Spurs but our last two home games were against Chelsea and Everton where we played really good in both games.”
“We beat Chelsea and drew against Everton in really good Premier League games so our confidence shouldn’t be down whatsoever – not even a little bit. After the Spurs game we will have to be on our toes more from the start of the game.
“The Hammers chances of getting maximum points against an organised Tony Pulis’ side – who recently beat title contenders Arsenal – are 50/50 as four of the last five meeting between these two sides have ended as a draw.”