ARGYLE assistant manager Kevin Summerfield admitted the 2-2 draw with Charlton last week was a disappointment.
The Pilgrims looked to be heading for a win after Mat Doumbe's first-half header but the visitors scored twice in the space of four minutes at the end of the game.
Although Emile Mpenza rescued a point with a dramatic last-ditch equaliser, Summerfield felt the team had failed to show their customary resilience.
He said: "We were disappointed because we have proven over the time that we have been here that we are a resilient team and, once we get the lead, we usually manage to hold on.
"We are very good collectively but it didn't happen on Saturday. One set-piece undid us and then a penalty.
"We were really disappointed but, then again, in the space of a couple of minutes, you can be elated that we managed to get something out of the game."