"We believe if we get positive results this week we'll be right in and amongst it"
Stephen Ward said the Town players still believe they can finish the regular season in the play-off places.
Blues sit four points outside the top six with five games remaining this term.
Town's next two are Northampton away this evening followed by the visit of AFC Wimbledon on Saturday.
"We have to believe that we can do it," the full-back said.
"It's a big week and we believe if we get positive results this week we'll be right in and amongst it.
"We must beat Northampton and if we can do that then it sets us up for the weekend.
"There is enough in the dressing room to deliver. I came here to try and get promoted and I still think we can. It will likely go down to the wire and we have to stay within touching distance until the final day."