Having arrived at Northampton on loan on Friday, the young striker was plunged straight into the action the next day against Macclesfield in League Two following injury to Eric Sabin.
And our reserves top-scorer certainly made an impression. The Northampton Chronicle described him as 'the proverbial thorn in the side of the visiting defence, snarling away and always an outlet'.
Meanwhile Colin Calderwood, Cobblers boss and his former reserve manager at Spurs, added: "Lee will be one that fights and works his corner for the team. He's a very unselfish player and lacks nothing in effort. Because of that it was a fairly easy decision to bring him in, but he never had time to train with us on Friday, so it was the first time he met some of the lads.
"I told Lee that if he showed the little bit of aggression and steel that I know he's got then the crowd will be behind him and they certainly were."
Development coach Clive Allen will be without Barney's services for tonight's trip to Portsmouth but was delighted with the reports filtering in from Sixfields.
"It's a good move for Lee and, again, it's come off the back of good performances for the reserves," said Clive.
"There's a lot of people watching these games and the lads who have gone away on loan have all done well.
"Colin obviously knows Lee from before but he's also taken into account what he's done so far this season.
"He knows what he's capable of having coached him and watched him closely and that was one of the reasons he was keen to take him and that could work to Lee's advantage."
Lee Barnard earned rave reviews after being thrown in at the deep end at Northampton at the weekend.