Johnny Ertl revealed his anger at another Pompey surrender and demanded: We have to become ruthless.
The Blues skipper appeared set to become the unlikely match-winner at Cheltenham after netting his first goal for more than three-and-a-half years.
Victory for the visitors would have been fully warranted following a dominant Whaddon Road display which should have seen them score several more times to reflect that superiority.
As it was, Jermaine McGlashan popped up in the 92nd minute to grab an equaliser for the second time in the match.
The final 10 minutes saw Pompey’s defence put under immense pressure and the result was a third successive 2-2 draw on their travels following late levellers by the opposition.
And Ertl was furious with the worrying trend.
He said: ‘I am really, really angry. I am angry because we really didn’t deserve it as a team.
‘All these players put in a great effort, I think the back lads, the two centre halves – Joe and Sonny – did brilliantly. They coped with everything.
‘We played with a lot of energy and should have seen the game out, this is the frustrating thing.
‘We are that close, it could have been six points more.
‘The opponents didn’t even create any chances.
‘We could have been 2-0 up at the very beginning and in the second half had so many chances to kill the game off.
‘That is what we have to work on and kill the game off.
‘We need to be clinical in certain areas, put it down the channels, kill the time off, all these things we need to improve right now.
‘We have to be ruthless. We had opportunities and then dropped a little bit too deep but we coped with them very well.
‘They just hoofed it forward all the time.
‘We were on the back foot and tried to push up anyway.
‘But we are so close and I was really pleased with the way we played again.
‘We showed we are a good team and have a good team spirit but it is just these little things at the end.
‘It’s a work in progress but we really didn’t deserve that on Saturday, that is the frustrating thing.’
For Ertl it was a first goal since netting for Crystal Palace in February 2010 in the FA Cup.
It was also a maiden Pompey strike in 44 appearances and a first in English league football.
Although he would gladly have swapped it for three points on the day.
He added: ‘I would definitely give my goal away if it meant we won the game.
‘We were desperate to get this result over the line. It would have been such a good feeling and a well-deserved three points, I would say.
‘That is the frustrating thing but the way we played was such a positive and we can take that out of it.’