Chris Hargreaves said the 2-2 draw at Altrincham was “almost the perfect away performance” for his Yeovil Town side.
The Glovers looked to have picked up their first National League win of the season thanks to a second half goal from substitute Gime Toure, only to be pegged back by an injury time equaliser.
Speaking to BBC Somerset’s Sheridan Robins after the game, Hargreaves said: “I will reflect tomorrow and say it was almost the perfect away performance – but almost is not good enough.
“Those players playing again next Saturday (at home to Dagenham & Redbridge) will be determined to eradicate these errors.”
He added: “There’s still some young lads who are learning some steep lessons here. But we haven’t got time for that, we need to see that out and then it’s a perfect away performance.
“Those boys are giving everything, we know it’s a challenge even against a team that’s not fancied.
“They are a good outfit with good players and all these games are a challenge. It hurts, but the players have to move on quickly.”
The boss revealed that experienced pair Lawson D’Ath and Chiori Johnson, who were both making their first starts of the season, were forced off with cramp towards the end of the game.
Young striker Matt Grivosti replaced Johnson after 73 minutes and Sam Perry came on for D’Ath just a couple of minutes before Altrincham substitute Egli Kaja flighted a deft header in to the net to earn a point.
Hargreaves said: “Having to take Lawson and Chiori off at the end because they were cramping up doesn’t help, but players that come on have to step up.
“The younger lads have to be leaders and maybe it was a bit of miscommunication at the end when you sit back and allow a two-versus one which doesn’t need to happen.
“It is a poor bit of play from us and it’s cost us dearly.”
Toure, who has appeared off the bench in the previous two matches with mixed results, provided a spark with the home side enjoying a sustained spell of pressure at the start of the second half.
Within nine minutes of his arrival, the former Carlisle United player latched on to a loose pass from the hosts to smash home his first goal for the club at the second attempt.
The manager said: “Gime, at full fitness is a real asset and we’re bedding him in, but he showed today what he can do, create something out of nothing.”