Scotland head coach Frank Hadden insists his squad have a bright future despite their World Cup quarter-final defeat by Argentina.
Frank Hadden said his young side would become more of a threat
The Scots staged a late rally in Paris but lost 19-13 on a frustrating evening in the Stade de France.
Hadden said: "I'm very confident our young side will learn from this.
"Some of these youngsters have matured in a very short space of time. I believe in the next two or three Six Nations, we'll be a serious threat."
The Scots toiled against Argentina and trailed 13-6 at the break after an error-strewn first half.
Hadden's side improved in the second period, but despite Chris Cusiter's try, they could not overturn the deficit.
Had the game gone on five or 10 minutes longer, we might have won
Scotland head coach
The Scotland coach defended his tactics, which often saw the Scots favour a kicking game over running with the ball.
"In the quarter-finals there hasn't been a massive amount of rugby played," he said.
"That's because referees are allowing a much bigger contest for the ball at the breakdown and defences are coming up so fast in attack and applying enormous pressure.
"That makes it difficult to play a fluid game. Most of the games have been tight and tense affairs and nobody has been able to establish any rhythm.
"That was the tale of the match. Argentina's territorial advantage was the crucial factor."
Hadden said the Scots had their opponents on the back foot in the closing stages of the game.
"Had the game gone on five or 10 minutes longer, we might have won," Hadden said.
"Argentina played a very good game and had a stranglehold until the final quarter that was difficult to do anything about."
Hadden said his side were not clinical enough to secure a place in the last four that their "long-suffering fans" deserved.
Cusiter said the players were disappointed to miss out on a place in the semi-finals.
"We gave ourselves an opportunity by beating Italy and we had to come up with something better than the group stages," he said.
"Unfortunately, I'm not sure why, we didn't manage to come up with it and the opportunity has gone for another four years."