Cobblers boss Justin Edinburgh was very disappointed as he reflected on Saturday’s 4-1 defeat at Charlton.
“I don’t think we can look for excuses today, we have to take responsibility and when we get back on the training ground make sure we put things right,” he said.
“I’m bitterly disappointed and frustrated and we have got to be far better than we were today to get results in this league.
“I apologise for not applauding our supporters at the final whistle and I’m disappointed with myself for that, it’s not like me. I was very angry and very disappointed and I wasn't thinking straight. I have fantastic respect for our supporters and I am sorry I didn't recognise their support today.
“I need to reflect on this and take the anger and emotion out of it. I think there will be changes going into the next game and I don’t think anyone could think otherwise.
"I am not stubborn enough that I am stuck to one formation. I’ve played different formations throughout my career as a manager and I don’t want to be pinned down on anything. I’m not that stubborn and if I feel it needs changing we will change it.
“We are open to criticism at the minute because of results but that’s football.
“We have to turn this around and we do that by working hard and sticking together.”