Wales are second in the table, just ahead of third-placed Scotland as they have conceded fewer points.
The assistant coach told BBC Sport: "It doesn't matter how you win, if its 3-0, it's not great for spectators but the reality is that is what it's all about at Test level.
"It's nice to play good rugby, nice to win games and express yourself when you play. The Welsh way is to play with ball in hand, but when you come down to it, it's all about winning.
"We have played some good rugby in the two tough games we have had so far, but we have won and that's what its all about."
The two sides meet at Murrayfield this afternoon.