Chris Plummer issued an apology to the Corby Town supporters after his team were thrashed 5-1 by FC Halifax Town at Steel Park.
The Steelmen went into the Blue Square Bet North clash on the back of a 6-1 hammering at Harrogate Town and their defence again looked fragile as they found themselves 4-1 down at half-time to the play-off chasing Shaymen.
And boss Plummer was in no mood to mix his words as he made a damning assessment of his team’s display.
“We are very disappointed,” the Steelmen manager said.
“At Harrogate, we felt we played well in the first half and a bit of blame laid at the referee’s door for what happened in the second half.
“But certainly on this occasion there was no-one else to blame apart from ourselves. In the first half we were very poor and easy to score against, which is very disappointing. We need to address that pretty quickly.
“We have played some of the top sides like Chester and Guiseley and given a really good account of ourselves and pushed them all the way.
“But in the last two games, the ugly side of us has reared its head. A few of the lads were throwing their hands in the air and that is not acceptable.
“It is not acceptable to them, not acceptable to the staff and it is certainly not acceptable to the fans who have turned up and paid good money. All we can do is apologise to those who turned up to watch it.”
Plummer, meanwhile, confirmed a potential new signing fell through ahead of the game on Friday.
But he insists he will continue to try to strengthen his squad for the run-in as they look to confirm safety in the Blue Square Bet North as soon as possible.
Plummer added: “We are always talking and we tried to bring in a player on Friday but unfortunately it didn’t happen.
“We will be looking again at the start of the week to try to bring some reinforcements in. We are always looking to add to the squad.
“We know the restraints we have here and we have got to be bringing in players who are better than what we have got. We are trying but it is problematic at times.”
The Steelmen are back in action on Tuesday night when they head to United Counties League side Desborough Town in the semi-finals of the NFA Hillier Senior Cup.