Glasgow coach Sean Lineen admits his team were made to pay for a lacking a clinical edge following a 22-16 defeat to Toulouse.
The Scots lead 9-7 at the break but were made to pay for missing a string of chances as David Skrela, Byron Kelleher and Yannick Jauzion sealed a second victory for three-time European champions Toulouse.
Lineen said: "I was very pleased with the effort and committment from the boys, but there were a few chances we didn't take while Toulouse took theirs.
"They turned pressure into points and that was the difference. We gave away three soft tries.
"The set piece was good, our scrum was strong and the boys gave everything. I always thought the game was there for us but we saw the class of Toulouse in the second half when they cut loose with ten points."
Glasgow are now facing an uphill battle to qualify from Pool Five after losing their opening two games of the Heineken Cup to Toulouse and last week at Newport Gwent Dragons.
But Lineen refused to give up hope, saying: "You never say never, but this was a big step up for us from last week.
"We've also blooded some young players who will learn so much from playing at this level, like Ruaridh Jackson and Pat MacArthur. Tom Evans looked dangerous, Dan Parks controlled the game and Alastair Kellock was outstanding. We will grow from this."