Although Sale lost 23-16, it was an improved performance on the previous 43-6 defeat to Exeter.
"I thought we were a lot better than last week, which was the key thing," said Redpath.
"We lacked a little bit in confidence in certain parts because of last week's drubbing. We needed to get a better performance and I thought we got that for the majority of the game."
Sale's next fixture is a tough trip away to Harlequins.