Newcastle Falcons director of rugby, Rob Andrew refused to get carried away after Sunday's 34-24 bonus point win over Edinburgh, despite his side reinforcing their status as Pool 5 table toppers.
Speaking after the game, in which his side trailed at the interval, he said: "I was very concerned at half time, and that was probably the worst we've played for a couple of months to be totally honest.
"The team talk wasn't very long, and it didn't need to be. I just said to the lads that if you want to go out of the Heineken Cup, keep playing the way you did in the first half."
Elaborating on the reasons for the poor opening half, he said: "There were three things with the first half performance. Firstly ourselves, and I think some of our players were complacent in thinking this game would be easier than it actually was. We talked about that all week, so it was very disappointing.
"Secondly, their tactics in slowing the ball down. They had players going down injured at every single breakdown, and the game had no pace at all.
"Finally, the referee. He allowed them to slow the game down, and if there's no pace in the game nothing happens, which is what Edinburgh wanted. We all saw, as soon as some pace was injected into the game that there was a big difference between the two sides, which is what we strive for.
"It was good tactics from them, but for the sake of the game the referee needs to step in when you're in that situation. Northampton tried it last week up here but the referee caned them and we kicked 27 points past them.
"We managed to get sufficiently free in the second half this week and just had enough opportunity to score, and we made four great tries."
The Falcons' second half blitz secured a valuable bonus point, with Andrew saying: "We've got to look at the positives and say that whenever we played with the ball we were pretty devastating and scored four tries pretty easily.
"Overall it was a pretty poor performance from us, but we got five points, so we can't complain about the outcome.
"Hopefully next week we will get a referee who gets them off the ball, and hopefully they won't narrow the pitch like Scotland did during the autumn Tests, which will lead to a good game of rugby.
"We just wanted to win, and we weren't too bothered during the game about the bonus point, because we just wanted to make sure of the victory. To get that fourth try was obviously fantastic though, but winning was the most important thing, and we have to keep the habit up."
Ahead of Saturday's rematch at Murrayfield, he added: "As well as looking at the game, you have to look at yourselves, and we were poor today.
"Tactically Edinburgh were spot on, but I just hope next week they'll come out and try to play some rugby. They're at home, and hopefully they'll try and entertain their own fans.
"I thought Edinburgh's forwards were superb. Our pack has been going well this year, but perhaps we were complacent and took our foot off the gas a bit. One thing I can assure the supporters is that we won't be as complacent next weekend."