Scotland scrum-half and captain Henry Pyrgos rued his side's ability to close out a rare victory against Ireland.
"We came out a little cold and we didn't hold the ball the way we wanted to," he said after the 26-22 defeat. "We caused them a few problems when we held the ball and we looked dangerous.
"We got ahead in the second-half but we just couldn't manage to close out the game the way we wanted to. We did not exit well.
"Ireland are the second best team in the world and we gave them too many chances to get back at us.
Scotland coach Vern Cotter, Joe Schmidt's former boss at Clermont Auvergne, admitted that his side have a lot of things to work on ahead of the World Cup.
"There were some good thing and some things we need to work on. The intentions were good but we need to be more accurate. We let a good Ireland team score some easy tries.
"It's good to play against top-class opposition. It's a good start for us. It's important to improve an that is here our focus is now.
"We can get better and we must get better. There was no lack of effort. There are things we need to fix but we need to do that quickly.
"We need composure at the start of games, we were nervous and allowed Ireland to play their game. We turned over too much ball in the first-half. We need to work on scrummaging."
Prop Ryan Grant is a World Cup doubt as he awaits a scan on Monday morning. Jon Welsh suffered concussion but will undertake protocols this week.