Neill Collins said Barnsley delivered a ‘fantastic performance’ in their 1-1 draw at Shrewsbury Town but rued another slow start and missed chances.
The relegation-battling hosts netted early but the Reds created several good chances and levelled with a 91st-minute penalty by Herbie Kane.
Collins said: “On Saturday we saw a good goalkeeping performance by Leyton Orient’s ‘keeper but tonight he (Marko Marosi) managed to up it.
“We can look at our finishing, we should have got more than one goal. But the ‘keeper made two or three of the best saves I’ve seen this season.
“The two negatives are the early goal again. We have to nip that in the bud. It’s been a trend from the start of the season. We’ve had periods when we’ve not done it. But it gives us a mountain to climb. The second one is that our finishing at times could have been better.
“But other than that it was a fantastic performance.
“We expected a tough game and got one but we played very well after the first 20 minutes minutes. If we had scored earlier I think we would have won it.
“The fans should be so proud of the team because they just keep going. The resilience this team has got is going to be a big factor.”
Kane kept his cool to blast the penalty into the top right corner after a foul on Mael De Gevigney.
Collins said: “Phenomenal. It would have summed the game up, given the ‘keeper’s performance, if he saved it. But Herbie gave him no chance. It was great to see a pressure penalty. It looked like one and we had other shouts. Herbie has taken on that mantle really well.”