"Ideally, you wish you could have 11 subs as I could have changed all 11 players at half-time," he said. "We just weren't doing the right things - the basics. It wasn't lack of effort, that would be unfair to say. It was lack of game knowledge. It's hard to put into words. I didn't see that performance coming. I didn't recognise the team out there on the pitch. It's frustrating because over the last few games we'd made some real strides, so this was difficult to take."