The Cobblers have been struggling lately, especially away from home, and now it's crucial that home performances deliver the right results.
"We have got to get back to winning ways and I am confident that we can get three points on Saturday" said the boss. "We haven't picked up enough points away from home this season and that is putting pressure on us to win our home games."
"I know we are a team who can score goals but at the moment we are making too many mistakes defensively and the disappointing thing is the manner in which we are conceding goals.
"I'm a positive person and I always like to look upwards, we have got one or two games in hand on some of the teams above us and if we can get on a run we can quickly move up the table."
Northampton are without Ryan Gilligan due to a knee problem, and Luke Gutteridge is still struggling with a similar injury.
Liam Davis is recovering from hernia surgery but Colin Larkin is fit again.
Walsall's on-loan Aston Villa striker Sam Williams is set to miss the trip to Sixfields with a hip injury.
But boss Chris Hutchings could name the starting line-up that stretched their unbeaten run to three games by winning at home to Colchester last weekend.