The key, said Gregor Townsend, the head coach, is getting better at imposing their game on the opposition.
True, this was only a warm-up match and the second half was badly disrupted when a dozen replacements came on, but even when the original XV were on the pitch Townsend was sitting in the stand shouting "accuracy" at his team as passes went astray and the set piece wobbled. Leinster will be watching the video of this performance and seeing plenty of chances.
On the other hand, Glasgow did win. They scored six tries - two each to Peter Murchie, the full-back, Mark Bennett, the centre, and one apiece for Lee Jones, the wing, and Jerry Yanuyanutawa, the prop - and, as Townsend observed, when they did get their game flowing, they looked impressive.
"There were a number of players who were playing for the first time this season," he pointed out. "Alex Dunbar was playing for the first time since getting injured in the PRO12 final, it was great to see him back.
"We ended with a length-of-the-field try, which showed good ambition to move the ball from our 22 with Rory Hughes doing really well and Peter Murchie supporting to get the try from about 90 metres, that was a positive.
"There are a number of things we have to do better, though. When the game isn't flowing the way we would like it to flow, we have to be able to take control and work out how we get back into our rhythm, how we get back on the right side of the referees and, even if we don't have the ball, how we can still dominate.
"The accuracy should have been better so there are things we have to work on this week. To be fair to London Scottish they played really well, got more confident in the second half. There were a lot of penalties in the game, so it didn't flow like last week's game [against Harlequins at Scotstoun], and they gave us a real competitive contest."
In the end, that was probably the biggest positive to come out of the game. Townsend has used 34 of his squad over the course of the two warm-up games, so he has plenty to choose from when he works out who to send out to do battle against Leinster. All 27 used against London Scottish came through unscathed and since there is a further dribble coming back from injury over the next few weeks as well as Stuart Hogg and Sean Lamont to return from their post-Commonwealth Games rest, his problem is going to be keeping them all match-fit.
"We have worked really hard. Now we, as coaches, have to make sure we keep them fresh and ready to go," said Townsend. "The big positive was that we got a big physical test so the players got a good workout. That was important with Leinster coming up. A lot of players now have match conditioning under their belts and as a coaching team we have been able to see where players are going into that first game."
On the downside, the scrum was under pressure, the maul defence was a real problem and, as Townsend accepted, the handling was mixed - a number of passes went down and a few offloads went straight to opposition players. Do that against Leinster, and they will be in trouble.
They also conceded three tries, one following a maul with Lee Miller, the former Gala fly-half, getting the touch down. The others were lapses in the defensive system with Connor Braid, the new signing who had come on at fly-half, suckered into going for a dummy runner to create the gap for the second and Murchie missing a one-on-one tackle as Mike Doneghan, the opposition wing, collected a cross kick.