Jim Mallinder says Northampton won't be getting carried away after their 47-7 demolition of Sale at Franklin's Gardens.
Saints ran in seven tries to clinch a place in the Aviva Premiership play-offs, with Jamie Elliott and James Wilson both bagging a brace.
It was an impressive display but Northampton have lost every game to the top three sides this season and will face an away trip to either Saracens or Leicester in the semi-finals.
Mallinder said: "We won't get carried away with this win. We have had some good results recently, but we were well beaten against Leicester and we won't forget that.
"Having said that we have seen the top teams lose recently and a semi-final is a one-off game.
"We know it is going to be hard, because this season we have struggled against the top sides, but we have got a chance and that is all you need."
Brian Mujati and Soane Tonga'uiha both played their last game at Franklin's Gardens, with both props moving to Racing Metro in the summer.
"They have been fantastic for us," said Mallinder. "They have taken us to a Heineken Cup final and very close to winning it.
"They have been brilliant for the club, the fans love and we will miss them."
Sale made seven changes to the side that beat Gloucester and director of rugby Steve Diamond denied the young side he sent out was anything to do with gaining more money through playing more English qualified players.
"We have hit our quota already," said Diamond. "It is nothing to do with that. It was about getting some experience, to come to a place like Northampton."
He added: "Today was just one push too far, we just couldn't keep up with them. Our young front row got taught a lesson, which is good for them, they will certainly be better for it."