Cobblers boss Keith Curle said Saturday's 2-0 win over Salford City was a big result for his side but said there is more to come from his team.
Jordan Turnbull's second half goal from a well-worked free-kick added to a Sam Hoskins first half penalty to seal the three points.
“The changing room needed that result today but in terms of the performance I think there is still more to come,” he said.
“We’ve had a good week with the players, training has had an intensity about it and I’ve been really pleased with the focus and application of the group.
“You need an honesty in the changing room and we know that last week was nowhere near good enough.
“The attention to detail was there today but there is another challenge ahead now on Tuesday and we need that same mindset.
“We don’t shy away from challenges and we need that same mentality.
“Alan McCormack has been a big miss for us and I think you saw elements of that today.
“He gave everybody around him confidence in what we are trying to do. We had it in mind to get him close to 60 minutes but we will step that up in the next couple of weeks and we were well aware we have another game on Tuesday so we had that in mind when he came off.
“Billy Waters has been on the fringes, he’s been frustrated but he’s earned his chance today and we got out of him what we needed. He’s an infectious character and he is a player who tries to make things happen.”