Nigel Davies warned there was more to come from his new-look Gloucester side after they bounced back from their Aviva Premiership opening day defeat to win 40-31 at London Irish.
Director of rugby Davies praised his players for responding to defeat at home by Northampton with a victory over the Exiles.
Davies said: "Our commitment and resilience is 1005 - our performance level is about 60. We can still get a lot better. One of the strengths we have in the squad is that we can put out a very competitive 23-man squad who can all make a big contribution. We will take a lot of confidence from this result."
Davies picked out 22-year-old fly-half Freddie Burns who kicked 25 points and laid on the all-important second try for left-wing James Simpson-Daniel, whose touchdown changed the course of the match.
Davies said: "Freddie was fantastic. He's still young although he appears to have been around for a long time. He's really enthusiastic and it's great to work with somebody like that."
Irish conceded 40 points for the second successive week after being thrashed 40-3 by Saracens in the London double header at Twickenham seven days earlier.
Director of rugby Brian Smith said: "It's disappointing but the big positive is that it was a much improved performance from last week.
"From an attack point of view we were a lot better. We gave ourselves a chance to win the game - last week we weren't in the game.
"From a defence point of view we just need to close things out a bit better.
"To concede two late tries is disappointing but there's things to work on. We need to tidy up things up front and sort out the infringements."