Kidney said: "Three teams have had their Grand Slams ended this weekend, and three teams are still in. That is the nature of it, but there is a championship still to be won.
"We will take a good look at what we can solve ourselves. We gave Wales some easy field position, and they made inroads.
"We had to defend for 60 per cent-plus of the game, and if you do that then you are going to ask for trouble. There are different aspects of the game I know we can improve on.
"They managed to put the ball wide on us, and we need to scan a bit better than we have been doing. It is just a case now of getting ready for the next match in six days' time."