Boss Graham Westley admitted Preston paid the price for playing with fear after shipping a late equaliser to draw with Brentford.
North End looked to be heading for all three points after Scott Laird put them ahead just after the hour mark but Antonio German popped up to nod home and pinch a 1-1 draw for the Bees.
And Westley urged his players to go for the jugular in the future. Westley still saw his side extend their unbeaten run - but also make it four home matches without a win - and he is convinced they should have gone for the kill when they were ahead.
"I thought we settled for 1-0. It didn't matter what instructions I sent onto the pitch I couldn't get the team to play on the front foot," said Westley. "In football, if you're not going forward and trying to score the only thing that's going to happen is you'll concede - and that's the lesson the team will learn.
"Our strength this season has been getting goals and we should be playing to our strengths. When you're 1-0 up you should play with a next-goal mentality and make it 2-0 because if you concede then you still get the three points.
"You're much stronger defensively when you've got the ball and I think the team knows it and they're frustrated with themselves.
"They're honest lads and they're intelligent and I think they'll grasp the nettle. We're six unbeaten now, which is a better run of form than we've seen previously, and I'm sure the team will keep getting stronger."
Brentford had goalkeeper Simon Moore to thank for keeping them in the game with saves to deny Stuart Beavon and Nicky Wroe. Bees boss Uwe Rosler was a relieved man after escaping with a point.
"I think in the first half we were under-par and they put pressure on us without creating any big chances," he said. "The two chances came from mistakes from us but I thought overall they were the better side in the first half.
"We couldn't establish any play so we tried to change the formation and it worked in the second-half. They didn't create anything and the goal came out of nothing. I always felt that we had more dominance on the ball without being able to create a clear-cut chance."