Northampton boss Jim Mallinder credited his side's defence for setting up their away win over Glasgow Warriors.
Saints came away from Scotstoun with three tries but it was their tackling in the second half that prevented the PRO12 champions from making a comeback.
"The way the 14 on the pitch organised our defence thereafter was crucial to our win," Mallinder said.
"I was very pleased with how we defended. We kept them out – well mostly.
"With our defence in place we took our chances."
Glasgow boss Gregor Townsend admitted that his side were caught out by the bounce of the ball for two of Northampton's tries, whilst reiterating that their aspirations in the tournament were not over.
The Scottish outfit still have five games to play after their Round 1 clash away to Racing 92 was postponed.
"Usually opponents only achieve scores after multi-phase play. Tonight the scores came after a grubber that came back off a post and a high ball that wasn't dealt with and bounced anywhere," Townsend said.
"Before this game I said we would have to win four if not five games and that hasn't changed.
"It does mean that we have to go and win at Northampton and the boys will be really determined to do so."