Mark West is hoping Thame United can go the distance when they host Binfield on Saturday.
The United manager revealed he was expecting a tough game, but that they needed to start beating teams around them to progress.
“They are a big strong side and sometimes we don’t compete with that. We have got a decent side out this week though.
“We have only played two league games at home and we haven’t done too badly.”
West said he was not impressed with his side after they let in a last minute goal to draw 2-2 with Reading Town on Tuesday night.
He added: “We started really well but just sort of went to sleep really.”
Having come back through Alex Stewart’s well executed volley and Adam Rhode’s calm finish, Thame thought they were heading for a well earned 2-1 victory.
However, deep into injury time Reading threw bodies forward and their persistence paid off as Graham Lewis rifled the ball past Lee Farrow.
The boss said he did not need to tell the players they had let him down.
Focusing on the positives, the manager said he was pleased to have maintained a five-game unbeaten run and that United were still regularly finding the net.
“It’s definitely better to be unbeaten than it is losing. Attacking-wise we scored two and that should be enough to win
“At the other end we need to tighten up a bit.”
The game followed Saturday’s 3-2 win over Buckingham Athletic in the FA Vase Cup.
West said he was pleased to progress to the first round proper.
United host Binfield at the ASM Stadium on Saturday (3pm kick-off).