Caretaker-manager Gareth McClelland admitted individual errors proved costly after FC Halifax Town were defeated 2-0 at Welling.
A First-half brace from Sahr Kabba proved decisive after Halifax have enjoyed the better of the opening 45 minutes, and had a goal from Hamza Bencherif contentiously ruled out for offside.
But sloppy defending by goalkeeper Matt Glennon and Sheffield United centre-back Julian Banton led to two goals in as many minutes for Kabba.
McClelland said: “I’m very disappointed. To give two goals away just before at half-time in the manner we did, two individual mistakes, is not what we deserved.
“We dominated the first-half, created numerous opportunities but unfortunately didn’t take them and we got punished just before half-time.
“Matty, who I can’t speak highly enough of, just made a mistake and fumbled it.
“Then to concede a second, and for Julian to make a mistake, is not what we deserved but these individual mistakes are costing us and we need to do better.”
admitted it had been the story of Town’s season
“It’s something the new gaffer will address I’m sure.
“I’m anticipating the new gaffer will be appointed during the week.
“But overall he’s got a good group of players to work with.
“I think we only need one or two additions and we’ll be fine.”
McClelland believes Town’s disallowed goal should have been allowed to stand and would have resulted in a very different contest if it had.
“To concede twice just before half-time was not what we deserved,” he said.
“We tried to change it somewhat in the second-half, we played three up top, tried to play a bit more direct, but the ball just didn’t fall for us.
“Obviously they’re going to manage the game with a 2-0 lead and they took their time with everything.
“But we didn’t get the decisions either.
“We had a goal disallowed, a bit of a bizarre one really, which I’m frustrated with.
“We don’t have the best of views from the dugout and I’ve got people at the club who are sat in the stand and they don’t understand where the decision came from either.
“The referee said the linesman made the decision and it’s one I feel they got wrong today.
“Obviously that puts us 1-0 up going into half-time and that makes it a totally different game.”
McClelland revealed Sheffield United trio CJ Hamilton, David Brooks and Julian Banton are all expected to extend their loans at The Shay for another month.
“Hamilton was still recovering from his hamstring injury, which is why he wasn’t involved,” he said.
“With Brooks, I just felt that Sam did extremely well against Gateshead and I thought that it was going to be quite direct here today so I thought we’d go with a bit more experience.
“But he will be back involved. We’re hoping to extend their loans on Monday for a further month because they’ve done really well overall.
“I’ll be speaking to Chris Morgan at Sheffield United, who’s given the impression they could be extended and that would be a good thing for the club.”
McClelland has enjoyed his three-game spell at the helm, which is now expected to come to an end with the appointment of a new manager this week.
“It’s been great,” he added. “The group of players are fantastic, really professional in everything they do.
“They’re all good footballers and we’ve just got to learn by our mistakes and learn quickly.
“But with just one or two additions I think we’ll be fine.”