Paul Turner admitted he was bitterly disappointed as the Dragons hopes of qualifying for the latter stages of the Heineken Cup were ended by Benetton Treviso.
Treviso captain Marius Goosen's last minute penalty gave the Italians a shock 24-22 victory and killed off the Dragons campaign in Europe.
The Dragons still face clashes against London Irish and Perpignan in January but Turner insists the current campaign has been a fair reflection of where his men stand.
Turner said: "We did a lot of things right but we got as many wrong and that's probably been the story of our campaign. You can't win European matches like that.
"If you don't kick the ball far enough, then they will drive the ball back at you and get the penalty.
"I don't think we ever really got control of the match even when Ceri scored the drop-goal. It was much the same last week in Treviso where we lacked composure when the pressure was on.
"They had a good set-piece and were never going to gave up coming here after that defeat last week.
"But we are where we are and we must remember we qualified in 23rd place in Europe. Only Harlequins were behind us and they came in as the wild card and people need to realise that.
"Treviso are perennial Italian champions and they're a top European side despite what people say and we just couldn't quite break them down.
"We know we've lacked that quality player throughout the competition and it was always going to be a tough match.
"We're extremely disappointed for the supporters that we've come up short."