He told the Evening Times: "Basically we could not deal with the fact that we had 16 players in total, nine of whom may have started, missing due to a combination of Scotland Six Nations duty, World Cup sevens and injury.
"Again there were two soft defensive tries in the first half which I am very disappointed about conceding but after that I couldn't fault the boys, they gave me everything in some of the worst conditions I have ever witnessed on a rugby field.
"But with the gap between us and Munster now at 14 points we have to be realistic and say that the remaining fixtures are about getting back to winning ways, continuing to blood youngsters and planning for next season.
"I thought Johnnie Beattie had his best game of the season for us and really led by example while Fergus Thomson at hooker carried the ball extremely well. On top of that, at 12, Ruaridh Jackson just got better and better.
"These are all young guys who are only going to get better. I am still confident that when we have our full-strength side out we can give any side a game."