Jim Mallinder hailed steady Stephen Myler after the fly-half’s last-gasp heroics saved Saints at Adams Park.
Myler slotted a penalty with the final kick of the game to ensure Northampton claimed a 17-15 victory against Wasps.
Joe Carlisle’s 78th-minute penalty gave the home side a one-point lead going into the game’s final scrum, at which Saints won a penalty.
And Myler made the most of it, striking it sweetly from wide left in wet and windy conditions to pick up the four points for his side.
“You need someone who’s steady in those positions,” said Saints boss Mallinder. “I don’t really know what was going through his mind. I know what was going through mine as he kicked it. I’m delighted.
“He kicked well all game. It wasn’t just that one. There were quite a lot of shots at goal where he did well.”
Mallinder was delighted with Saints’ defensive efforts as they stopped Wasps scoring a try for the entire 80 minutes.
He said: “Defensively we were very strong. I was really pleased with our defence. We kept to our system pretty well.
“We did give away a couple of penalties, probably just overcompetitive at the breakdown, but generally we were good, well-organised.”